1981777560

素因数分解:

$2^3\times 3^1\times 5^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{101}}^1$

素因数の和:247

約数の個数: 384

約数和(自身を含む): 7233546240

約数和(自身を除く): 5251768680

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 47, 49, 56, 60, 70, 71, 84, 94, 98, 101, 105, 120, 140, 141, 142, 147, 168, 188, 196, 202, 210, 213, 235, 245, 280, 282, 284, 294, 303, 329, 355, 376, 392, 404, 420, 426, 470, 490, 497, 505, 564, 568, 588, 606, 658, 705, 707, 710, 735, 808, 840, 852, 940, 980, 987, 994, 1010, 1065, 1128, 1176, 1212, 1316, 1410, 1414, 1420, 1470, 1491, 1515, 1645, 1704, 1880, 1960, 1974, 1988, 2020, 2121, 2130, 2303, 2424, 2485, 2632, 2820, 2828, 2840, 2940, 2982, 3030, 3290, 3337, 3479, 3535, 3948, 3976, 4040, 4242, 4260, 4606, 4747, 4935, 4949, 4970, 5640, 5656, 5880, 5964, 6060, 6580, 6674, 6909, 6958, 7070, 7171, 7455, 7896, 8484, 8520, 9212, 9494, 9870, 9898, 9940, 10011, 10437, 10605, 11515, 11928, 12120, 13160, 13348, 13818, 13916, 14140, 14241, 14342, 14847, 14910, 16685, 16968, 17395, 18424, 18988, 19740, 19796, 19880, 20022, 20874, 21210, 21513, 23030, 23359, 23735, 24745, 26696, 27636, 27832, 28280, 28482, 28684, 29694, 29820, 33229, 33370, 34545, 34790, 35855, 37976, 39480, 39592, 40044, 41748, 42420, 43026, 46060, 46718, 47470, 49490, 50055, 50197, 52185, 55272, 56964, 57368, 59388, 59640, 66458, 66740, 69090, 69580, 70077, 71205, 71710, 74235, 80088, 83496, 84840, 86052, 92120, 93436, 94940, 98980, 99687, 100110, 100394, 104370, 107565, 113928, 116795, 118776, 132916, 133480, 138180, 139160, 140154, 142410, 143420, 148470, 150591, 163513, 166145, 172104, 186872, 189880, 197960, 199374, 200220, 200788, 208740, 215130, 232603, 233590, 250985, 265832, 276360, 280308, 284820, 286840, 296940, 301182, 327026, 332290, 337037, 350385, 351379, 398748, 400440, 401576, 417480, 430260, 465206, 467180, 490539, 498435, 501970, 560616, 569640, 593880, 602364, 654052, 664580, 674074, 697809, 700770, 702758, 752955, 797496, 817565, 860520, 930412, 934360, 981078, 996870, 1003940, 1011111, 1054137, 1163015, 1204728, 1308104, 1329160, 1348148, 1395618, 1401540, 1405516, 1505910, 1635130, 1685185, 1756895, 1860824, 1962156, 1993740, 2007880, 2022222, 2108274, 2326030, 2359259, 2452695, 2696296, 2791236, 2803080, 2811032, 3011820, 3270260, 3370370, 3489045, 3513790, 3924312, 3987480, 4044444, 4216548, 4652060, 4718518, 4905390, 5055555, 5270685, 5582472, 6023640, 6540520, 6740740, 6978090, 7027580, 7077777, 8088888, 8433096, 9304120, 9437036, 9810780, 10111110, 10541370, 11796295, 13481480, 13956180, 14055160, 14155554, 16514813, 18874072, 19621560, 20222220, 21082740, 23592590, 27912360, 28311108, 33029626, 35388885, 40444440, 42165480, 47185180, 49544439, 56622216, 66059252, 70777770, 82574065, 94370360, 99088878, 132118504, 141555540, 165148130, 198177756, 247722195, 283111080, 330296260, 396355512, 495444390, 660592520, 990888780, 1981777560]

約数ペア:

[(1, 1981777560), (2, 990888780), (3, 660592520), (4, 495444390), (5, 396355512), (6, 330296260), (7, 283111080), (8, 247722195), (10, 198177756), (12, 165148130), (14, 141555540), (15, 132118504), (20, 99088878), (21, 94370360), (24, 82574065), (28, 70777770), (30, 66059252), (35, 56622216), (40, 49544439), (42, 47185180), (47, 42165480), (49, 40444440), (56, 35388885), (60, 33029626), (70, 28311108), (71, 27912360), (84, 23592590), (94, 21082740), (98, 20222220), (101, 19621560), (105, 18874072), (120, 16514813), (140, 14155554), (141, 14055160), (142, 13956180), (147, 13481480), (168, 11796295), (188, 10541370), (196, 10111110), (202, 9810780), (210, 9437036), (213, 9304120), (235, 8433096), (245, 8088888), (280, 7077777), (282, 7027580), (284, 6978090), (294, 6740740), (303, 6540520), (329, 6023640), (355, 5582472), (376, 5270685), (392, 5055555), (404, 4905390), (420, 4718518), (426, 4652060), (470, 4216548), (490, 4044444), (497, 3987480), (505, 3924312), (564, 3513790), (568, 3489045), (588, 3370370), (606, 3270260), (658, 3011820), (705, 2811032), (707, 2803080), (710, 2791236), (735, 2696296), (808, 2452695), (840, 2359259), (852, 2326030), (940, 2108274), (980, 2022222), (987, 2007880), (994, 1993740), (1010, 1962156), (1065, 1860824), (1128, 1756895), (1176, 1685185), (1212, 1635130), (1316, 1505910), (1410, 1405516), (1414, 1401540), (1420, 1395618), (1470, 1348148), (1491, 1329160), (1515, 1308104), (1645, 1204728), (1704, 1163015), (1880, 1054137), (1960, 1011111), (1974, 1003940), (1988, 996870), (2020, 981078), (2121, 934360), (2130, 930412), (2303, 860520), (2424, 817565), (2485, 797496), (2632, 752955), (2820, 702758), (2828, 700770), (2840, 697809), (2940, 674074), (2982, 664580), (3030, 654052), (3290, 602364), (3337, 593880), (3479, 569640), (3535, 560616), (3948, 501970), (3976, 498435), (4040, 490539), (4242, 467180), (4260, 465206), (4606, 430260), (4747, 417480), (4935, 401576), (4949, 400440), (4970, 398748), (5640, 351379), (5656, 350385), (5880, 337037), (5964, 332290), (6060, 327026), (6580, 301182), (6674, 296940), (6909, 286840), (6958, 284820), (7070, 280308), (7171, 276360), (7455, 265832), (7896, 250985), (8484, 233590), (8520, 232603), (9212, 215130), (9494, 208740), (9870, 200788), (9898, 200220), (9940, 199374), (10011, 197960), (10437, 189880), (10605, 186872), (11515, 172104), (11928, 166145), (12120, 163513), (13160, 150591), (13348, 148470), (13818, 143420), (13916, 142410), (14140, 140154), (14241, 139160), (14342, 138180), (14847, 133480), (14910, 132916), (16685, 118776), (16968, 116795), (17395, 113928), (18424, 107565), (18988, 104370), (19740, 100394), (19796, 100110), (19880, 99687), (20022, 98980), (20874, 94940), (21210, 93436), (21513, 92120), (23030, 86052), (23359, 84840), (23735, 83496), (24745, 80088), (26696, 74235), (27636, 71710), (27832, 71205), (28280, 70077), (28482, 69580), (28684, 69090), (29694, 66740), (29820, 66458), (33229, 59640), (33370, 59388), (34545, 57368), (34790, 56964), (35855, 55272), (37976, 52185), (39480, 50197), (39592, 50055), (40044, 49490), (41748, 47470), (42420, 46718), (43026, 46060)]