20691720

素因数分解:

$2^3\times 3^3\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1$

素因数の和:74

約数の個数: 384

約数和(自身を含む): 88646400

約数和(自身を除く): 67954680

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 17, 18, 20, 21, 23, 24, 27, 28, 30, 34, 35, 36, 40, 42, 45, 46, 49, 51, 54, 56, 60, 63, 68, 69, 70, 72, 84, 85, 90, 92, 98, 102, 105, 108, 115, 119, 120, 126, 135, 136, 138, 140, 147, 153, 161, 168, 170, 180, 184, 189, 196, 204, 207, 210, 216, 230, 238, 245, 252, 255, 270, 276, 280, 294, 306, 315, 322, 340, 345, 357, 360, 378, 391, 392, 408, 414, 420, 441, 459, 460, 476, 483, 490, 504, 510, 540, 552, 588, 595, 612, 621, 630, 644, 680, 690, 714, 735, 756, 765, 782, 805, 828, 833, 840, 882, 918, 920, 945, 952, 966, 980, 1020, 1035, 1071, 1080, 1127, 1173, 1176, 1190, 1224, 1242, 1260, 1288, 1323, 1380, 1428, 1449, 1470, 1512, 1530, 1564, 1610, 1656, 1666, 1764, 1785, 1836, 1890, 1932, 1955, 1960, 2040, 2070, 2142, 2205, 2254, 2295, 2346, 2380, 2415, 2484, 2499, 2520, 2646, 2737, 2760, 2856, 2898, 2940, 3060, 3105, 3128, 3213, 3220, 3332, 3381, 3519, 3528, 3570, 3672, 3780, 3864, 3910, 4140, 4165, 4284, 4347, 4410, 4508, 4590, 4692, 4760, 4830, 4968, 4998, 5292, 5355, 5474, 5635, 5796, 5865, 5880, 6120, 6210, 6426, 6440, 6615, 6664, 6762, 7038, 7140, 7245, 7497, 7560, 7820, 8211, 8280, 8330, 8568, 8694, 8820, 9016, 9180, 9384, 9660, 9996, 10143, 10557, 10584, 10710, 10948, 11270, 11592, 11730, 12420, 12495, 12852, 13230, 13524, 13685, 14076, 14280, 14490, 14994, 15640, 16065, 16422, 16660, 16905, 17388, 17595, 17640, 18360, 19159, 19320, 19992, 20286, 21114, 21420, 21735, 21896, 22491, 22540, 23460, 24633, 24840, 24990, 25704, 26460, 27048, 27370, 28152, 28980, 29988, 30429, 32130, 32844, 33320, 33810, 34776, 35190, 37485, 38318, 40572, 41055, 42228, 42840, 43470, 44982, 45080, 46920, 49266, 49980, 50715, 52785, 52920, 54740, 57477, 57960, 59976, 60858, 64260, 65688, 67620, 70380, 73899, 74970, 76636, 81144, 82110, 84456, 86940, 89964, 95795, 98532, 99960, 101430, 105570, 109480, 112455, 114954, 121716, 123165, 128520, 135240, 140760, 147798, 149940, 152145, 153272, 164220, 172431, 173880, 179928, 191590, 197064, 202860, 211140, 224910, 229908, 243432, 246330, 287385, 295596, 299880, 304290, 328440, 344862, 369495, 383180, 405720, 422280, 449820, 459816, 492660, 517293, 574770, 591192, 608580, 689724, 738990, 766360, 862155, 899640, 985320, 1034586, 1149540, 1217160, 1379448, 1477980, 1724310, 2069172, 2299080, 2586465, 2955960, 3448620, 4138344, 5172930, 6897240, 10345860, 20691720]

約数ペア:

[(1, 20691720), (2, 10345860), (3, 6897240), (4, 5172930), (5, 4138344), (6, 3448620), (7, 2955960), (8, 2586465), (9, 2299080), (10, 2069172), (12, 1724310), (14, 1477980), (15, 1379448), (17, 1217160), (18, 1149540), (20, 1034586), (21, 985320), (23, 899640), (24, 862155), (27, 766360), (28, 738990), (30, 689724), (34, 608580), (35, 591192), (36, 574770), (40, 517293), (42, 492660), (45, 459816), (46, 449820), (49, 422280), (51, 405720), (54, 383180), (56, 369495), (60, 344862), (63, 328440), (68, 304290), (69, 299880), (70, 295596), (72, 287385), (84, 246330), (85, 243432), (90, 229908), (92, 224910), (98, 211140), (102, 202860), (105, 197064), (108, 191590), (115, 179928), (119, 173880), (120, 172431), (126, 164220), (135, 153272), (136, 152145), (138, 149940), (140, 147798), (147, 140760), (153, 135240), (161, 128520), (168, 123165), (170, 121716), (180, 114954), (184, 112455), (189, 109480), (196, 105570), (204, 101430), (207, 99960), (210, 98532), (216, 95795), (230, 89964), (238, 86940), (245, 84456), (252, 82110), (255, 81144), (270, 76636), (276, 74970), (280, 73899), (294, 70380), (306, 67620), (315, 65688), (322, 64260), (340, 60858), (345, 59976), (357, 57960), (360, 57477), (378, 54740), (391, 52920), (392, 52785), (408, 50715), (414, 49980), (420, 49266), (441, 46920), (459, 45080), (460, 44982), (476, 43470), (483, 42840), (490, 42228), (504, 41055), (510, 40572), (540, 38318), (552, 37485), (588, 35190), (595, 34776), (612, 33810), (621, 33320), (630, 32844), (644, 32130), (680, 30429), (690, 29988), (714, 28980), (735, 28152), (756, 27370), (765, 27048), (782, 26460), (805, 25704), (828, 24990), (833, 24840), (840, 24633), (882, 23460), (918, 22540), (920, 22491), (945, 21896), (952, 21735), (966, 21420), (980, 21114), (1020, 20286), (1035, 19992), (1071, 19320), (1080, 19159), (1127, 18360), (1173, 17640), (1176, 17595), (1190, 17388), (1224, 16905), (1242, 16660), (1260, 16422), (1288, 16065), (1323, 15640), (1380, 14994), (1428, 14490), (1449, 14280), (1470, 14076), (1512, 13685), (1530, 13524), (1564, 13230), (1610, 12852), (1656, 12495), (1666, 12420), (1764, 11730), (1785, 11592), (1836, 11270), (1890, 10948), (1932, 10710), (1955, 10584), (1960, 10557), (2040, 10143), (2070, 9996), (2142, 9660), (2205, 9384), (2254, 9180), (2295, 9016), (2346, 8820), (2380, 8694), (2415, 8568), (2484, 8330), (2499, 8280), (2520, 8211), (2646, 7820), (2737, 7560), (2760, 7497), (2856, 7245), (2898, 7140), (2940, 7038), (3060, 6762), (3105, 6664), (3128, 6615), (3213, 6440), (3220, 6426), (3332, 6210), (3381, 6120), (3519, 5880), (3528, 5865), (3570, 5796), (3672, 5635), (3780, 5474), (3864, 5355), (3910, 5292), (4140, 4998), (4165, 4968), (4284, 4830), (4347, 4760), (4410, 4692), (4508, 4590)]