21520508520

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{197}}^1\times {\mathrm{2767}}^1$

素因数の和:3032

約数の個数: 256

約数和(自身を含む): 75764367360

約数和(自身を除く): 54243858840

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 47, 56, 60, 70, 84, 94, 105, 120, 140, 141, 168, 188, 197, 210, 235, 280, 282, 329, 376, 394, 420, 470, 564, 591, 658, 705, 788, 840, 940, 985, 987, 1128, 1182, 1316, 1379, 1410, 1576, 1645, 1880, 1970, 1974, 2364, 2632, 2758, 2767, 2820, 2955, 3290, 3940, 3948, 4137, 4728, 4935, 5516, 5534, 5640, 5910, 6580, 6895, 7880, 7896, 8274, 8301, 9259, 9870, 11032, 11068, 11820, 13160, 13790, 13835, 16548, 16602, 18518, 19369, 19740, 20685, 22136, 23640, 27580, 27670, 27777, 33096, 33204, 37036, 38738, 39480, 41370, 41505, 46295, 55160, 55340, 55554, 58107, 64813, 66408, 74072, 77476, 82740, 83010, 92590, 96845, 110680, 111108, 116214, 129626, 130049, 138885, 154952, 165480, 166020, 185180, 193690, 194439, 222216, 232428, 259252, 260098, 277770, 290535, 324065, 332040, 370360, 387380, 388878, 390147, 464856, 518504, 520196, 545099, 555540, 581070, 648130, 650245, 774760, 777756, 780294, 910343, 972195, 1040392, 1090198, 1111080, 1162140, 1296260, 1300490, 1555512, 1560588, 1635297, 1820686, 1944390, 1950735, 2180396, 2324280, 2592520, 2600980, 2725495, 2731029, 3121176, 3270594, 3641372, 3815693, 3888780, 3901470, 4360792, 4551715, 5201960, 5450990, 5462058, 6541188, 7282744, 7631386, 7777560, 7802940, 8176485, 9103430, 10901980, 10924116, 11447079, 13082376, 13655145, 15262772, 15605880, 16352970, 18206860, 19078465, 21803960, 21848232, 22894158, 25619653, 27310290, 30525544, 32705940, 36413720, 38156930, 45788316, 51239306, 54620580, 57235395, 65411880, 76313860, 76858959, 91576632, 102478612, 109241160, 114470790, 128098265, 152627720, 153717918, 179337571, 204957224, 228941580, 256196530, 307435836, 358675142, 384294795, 457883160, 512393060, 538012713, 614871672, 717350284, 768589590, 896687855, 1024786120, 1076025426, 1434700568, 1537179180, 1793375710, 2152050852, 2690063565, 3074358360, 3586751420, 4304101704, 5380127130, 7173502840, 10760254260, 21520508520]

約数ペア:

[(1, 21520508520), (2, 10760254260), (3, 7173502840), (4, 5380127130), (5, 4304101704), (6, 3586751420), (7, 3074358360), (8, 2690063565), (10, 2152050852), (12, 1793375710), (14, 1537179180), (15, 1434700568), (20, 1076025426), (21, 1024786120), (24, 896687855), (28, 768589590), (30, 717350284), (35, 614871672), (40, 538012713), (42, 512393060), (47, 457883160), (56, 384294795), (60, 358675142), (70, 307435836), (84, 256196530), (94, 228941580), (105, 204957224), (120, 179337571), (140, 153717918), (141, 152627720), (168, 128098265), (188, 114470790), (197, 109241160), (210, 102478612), (235, 91576632), (280, 76858959), (282, 76313860), (329, 65411880), (376, 57235395), (394, 54620580), (420, 51239306), (470, 45788316), (564, 38156930), (591, 36413720), (658, 32705940), (705, 30525544), (788, 27310290), (840, 25619653), (940, 22894158), (985, 21848232), (987, 21803960), (1128, 19078465), (1182, 18206860), (1316, 16352970), (1379, 15605880), (1410, 15262772), (1576, 13655145), (1645, 13082376), (1880, 11447079), (1970, 10924116), (1974, 10901980), (2364, 9103430), (2632, 8176485), (2758, 7802940), (2767, 7777560), (2820, 7631386), (2955, 7282744), (3290, 6541188), (3940, 5462058), (3948, 5450990), (4137, 5201960), (4728, 4551715), (4935, 4360792), (5516, 3901470), (5534, 3888780), (5640, 3815693), (5910, 3641372), (6580, 3270594), (6895, 3121176), (7880, 2731029), (7896, 2725495), (8274, 2600980), (8301, 2592520), (9259, 2324280), (9870, 2180396), (11032, 1950735), (11068, 1944390), (11820, 1820686), (13160, 1635297), (13790, 1560588), (13835, 1555512), (16548, 1300490), (16602, 1296260), (18518, 1162140), (19369, 1111080), (19740, 1090198), (20685, 1040392), (22136, 972195), (23640, 910343), (27580, 780294), (27670, 777756), (27777, 774760), (33096, 650245), (33204, 648130), (37036, 581070), (38738, 555540), (39480, 545099), (41370, 520196), (41505, 518504), (46295, 464856), (55160, 390147), (55340, 388878), (55554, 387380), (58107, 370360), (64813, 332040), (66408, 324065), (74072, 290535), (77476, 277770), (82740, 260098), (83010, 259252), (92590, 232428), (96845, 222216), (110680, 194439), (111108, 193690), (116214, 185180), (129626, 166020), (130049, 165480), (138885, 154952)]