661893960

素因数分解:

$2^3\times 3^1\times 5^1\times 7^3\times {\mathrm{13}}^1\times {\mathrm{1237}}^1$

素因数の和:1285

約数の個数: 256

約数和(自身を含む): 2495808000

約数和(自身を除く): 1833914040

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 20, 21, 24, 26, 28, 30, 35, 39, 40, 42, 49, 52, 56, 60, 65, 70, 78, 84, 91, 98, 104, 105, 120, 130, 140, 147, 156, 168, 182, 195, 196, 210, 245, 260, 273, 280, 294, 312, 343, 364, 390, 392, 420, 455, 490, 520, 546, 588, 637, 686, 728, 735, 780, 840, 910, 980, 1029, 1092, 1176, 1237, 1274, 1365, 1372, 1470, 1560, 1715, 1820, 1911, 1960, 2058, 2184, 2474, 2548, 2730, 2744, 2940, 3185, 3430, 3640, 3711, 3822, 4116, 4459, 4948, 5096, 5145, 5460, 5880, 6185, 6370, 6860, 7422, 7644, 8232, 8659, 8918, 9555, 9896, 10290, 10920, 12370, 12740, 13377, 13720, 14844, 15288, 16081, 17318, 17836, 18555, 19110, 20580, 22295, 24740, 25480, 25977, 26754, 29688, 32162, 34636, 35672, 37110, 38220, 41160, 43295, 44590, 48243, 49480, 51954, 53508, 60613, 64324, 66885, 69272, 74220, 76440, 80405, 86590, 89180, 96486, 103908, 107016, 112567, 121226, 128648, 129885, 133770, 148440, 160810, 173180, 178360, 181839, 192972, 207816, 225134, 241215, 242452, 259770, 267540, 303065, 321620, 337701, 346360, 363678, 385944, 424291, 450268, 482430, 484904, 519540, 535080, 562835, 606130, 643240, 675402, 727356, 787969, 848582, 900536, 909195, 964860, 1039080, 1125670, 1212260, 1272873, 1350804, 1454712, 1575938, 1688505, 1697164, 1818390, 1929720, 2121455, 2251340, 2363907, 2424520, 2545746, 2701608, 3151876, 3377010, 3394328, 3636780, 3939845, 4242910, 4502680, 4727814, 5091492, 5515783, 6303752, 6364365, 6754020, 7273560, 7879690, 8485820, 9455628, 10182984, 11031566, 11819535, 12728730, 13508040, 15759380, 16547349, 16971640, 18911256, 22063132, 23639070, 25457460, 27578915, 31518760, 33094698, 44126264, 47278140, 50914920, 55157830, 66189396, 82736745, 94556280, 110315660, 132378792, 165473490, 220631320, 330946980, 661893960]

約数ペア:

[(1, 661893960), (2, 330946980), (3, 220631320), (4, 165473490), (5, 132378792), (6, 110315660), (7, 94556280), (8, 82736745), (10, 66189396), (12, 55157830), (13, 50914920), (14, 47278140), (15, 44126264), (20, 33094698), (21, 31518760), (24, 27578915), (26, 25457460), (28, 23639070), (30, 22063132), (35, 18911256), (39, 16971640), (40, 16547349), (42, 15759380), (49, 13508040), (52, 12728730), (56, 11819535), (60, 11031566), (65, 10182984), (70, 9455628), (78, 8485820), (84, 7879690), (91, 7273560), (98, 6754020), (104, 6364365), (105, 6303752), (120, 5515783), (130, 5091492), (140, 4727814), (147, 4502680), (156, 4242910), (168, 3939845), (182, 3636780), (195, 3394328), (196, 3377010), (210, 3151876), (245, 2701608), (260, 2545746), (273, 2424520), (280, 2363907), (294, 2251340), (312, 2121455), (343, 1929720), (364, 1818390), (390, 1697164), (392, 1688505), (420, 1575938), (455, 1454712), (490, 1350804), (520, 1272873), (546, 1212260), (588, 1125670), (637, 1039080), (686, 964860), (728, 909195), (735, 900536), (780, 848582), (840, 787969), (910, 727356), (980, 675402), (1029, 643240), (1092, 606130), (1176, 562835), (1237, 535080), (1274, 519540), (1365, 484904), (1372, 482430), (1470, 450268), (1560, 424291), (1715, 385944), (1820, 363678), (1911, 346360), (1960, 337701), (2058, 321620), (2184, 303065), (2474, 267540), (2548, 259770), (2730, 242452), (2744, 241215), (2940, 225134), (3185, 207816), (3430, 192972), (3640, 181839), (3711, 178360), (3822, 173180), (4116, 160810), (4459, 148440), (4948, 133770), (5096, 129885), (5145, 128648), (5460, 121226), (5880, 112567), (6185, 107016), (6370, 103908), (6860, 96486), (7422, 89180), (7644, 86590), (8232, 80405), (8659, 76440), (8918, 74220), (9555, 69272), (9896, 66885), (10290, 64324), (10920, 60613), (12370, 53508), (12740, 51954), (13377, 49480), (13720, 48243), (14844, 44590), (15288, 43295), (16081, 41160), (17318, 38220), (17836, 37110), (18555, 35672), (19110, 34636), (20580, 32162), (22295, 29688), (24740, 26754), (25480, 25977)]