20177040

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{223}}^1$

素因数の和:281

約数の個数: 160

約数和(自身を含む): 69995520

約数和(自身を除く): 49818480

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 29, 30, 39, 40, 48, 52, 58, 60, 65, 78, 80, 87, 104, 116, 120, 130, 145, 156, 174, 195, 208, 223, 232, 240, 260, 290, 312, 348, 377, 390, 435, 446, 464, 520, 580, 624, 669, 696, 754, 780, 870, 892, 1040, 1115, 1131, 1160, 1338, 1392, 1508, 1560, 1740, 1784, 1885, 2230, 2262, 2320, 2676, 2899, 3016, 3120, 3345, 3480, 3568, 3770, 4460, 4524, 5352, 5655, 5798, 6032, 6467, 6690, 6960, 7540, 8697, 8920, 9048, 10704, 11310, 11596, 12934, 13380, 14495, 15080, 17394, 17840, 18096, 19401, 22620, 23192, 25868, 26760, 28990, 30160, 32335, 34788, 38802, 43485, 45240, 46384, 51736, 53520, 57980, 64670, 69576, 77604, 84071, 86970, 90480, 97005, 103472, 115960, 129340, 139152, 155208, 168142, 173940, 194010, 231920, 252213, 258680, 310416, 336284, 347880, 388020, 420355, 504426, 517360, 672568, 695760, 776040, 840710, 1008852, 1261065, 1345136, 1552080, 1681420, 2017704, 2522130, 3362840, 4035408, 5044260, 6725680, 10088520, 20177040]

約数ペア:

[(1, 20177040), (2, 10088520), (3, 6725680), (4, 5044260), (5, 4035408), (6, 3362840), (8, 2522130), (10, 2017704), (12, 1681420), (13, 1552080), (15, 1345136), (16, 1261065), (20, 1008852), (24, 840710), (26, 776040), (29, 695760), (30, 672568), (39, 517360), (40, 504426), (48, 420355), (52, 388020), (58, 347880), (60, 336284), (65, 310416), (78, 258680), (80, 252213), (87, 231920), (104, 194010), (116, 173940), (120, 168142), (130, 155208), (145, 139152), (156, 129340), (174, 115960), (195, 103472), (208, 97005), (223, 90480), (232, 86970), (240, 84071), (260, 77604), (290, 69576), (312, 64670), (348, 57980), (377, 53520), (390, 51736), (435, 46384), (446, 45240), (464, 43485), (520, 38802), (580, 34788), (624, 32335), (669, 30160), (696, 28990), (754, 26760), (780, 25868), (870, 23192), (892, 22620), (1040, 19401), (1115, 18096), (1131, 17840), (1160, 17394), (1338, 15080), (1392, 14495), (1508, 13380), (1560, 12934), (1740, 11596), (1784, 11310), (1885, 10704), (2230, 9048), (2262, 8920), (2320, 8697), (2676, 7540), (2899, 6960), (3016, 6690), (3120, 6467), (3345, 6032), (3480, 5798), (3568, 5655), (3770, 5352), (4460, 4524)]