21745360

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{103}}^1$

素因数の和:165

約数の個数: 160

約数和(自身を含む): 64995840

約数和(自身を除く): 43250480

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 29, 35, 40, 52, 56, 58, 65, 70, 80, 91, 103, 104, 112, 116, 130, 140, 145, 182, 203, 206, 208, 232, 260, 280, 290, 364, 377, 406, 412, 455, 464, 515, 520, 560, 580, 721, 728, 754, 812, 824, 910, 1015, 1030, 1040, 1160, 1339, 1442, 1456, 1508, 1624, 1648, 1820, 1885, 2030, 2060, 2320, 2639, 2678, 2884, 2987, 3016, 3248, 3605, 3640, 3770, 4060, 4120, 5278, 5356, 5768, 5974, 6032, 6695, 7210, 7280, 7540, 8120, 8240, 9373, 10556, 10712, 11536, 11948, 13195, 13390, 14420, 14935, 15080, 16240, 18746, 20909, 21112, 21424, 23896, 26390, 26780, 28840, 29870, 30160, 37492, 38831, 41818, 42224, 46865, 47792, 52780, 53560, 57680, 59740, 74984, 77662, 83636, 93730, 104545, 105560, 107120, 119480, 149968, 155324, 167272, 187460, 194155, 209090, 211120, 238960, 271817, 310648, 334544, 374920, 388310, 418180, 543634, 621296, 749840, 776620, 836360, 1087268, 1359085, 1553240, 1672720, 2174536, 2718170, 3106480, 4349072, 5436340, 10872680, 21745360]

約数ペア:

[(1, 21745360), (2, 10872680), (4, 5436340), (5, 4349072), (7, 3106480), (8, 2718170), (10, 2174536), (13, 1672720), (14, 1553240), (16, 1359085), (20, 1087268), (26, 836360), (28, 776620), (29, 749840), (35, 621296), (40, 543634), (52, 418180), (56, 388310), (58, 374920), (65, 334544), (70, 310648), (80, 271817), (91, 238960), (103, 211120), (104, 209090), (112, 194155), (116, 187460), (130, 167272), (140, 155324), (145, 149968), (182, 119480), (203, 107120), (206, 105560), (208, 104545), (232, 93730), (260, 83636), (280, 77662), (290, 74984), (364, 59740), (377, 57680), (406, 53560), (412, 52780), (455, 47792), (464, 46865), (515, 42224), (520, 41818), (560, 38831), (580, 37492), (721, 30160), (728, 29870), (754, 28840), (812, 26780), (824, 26390), (910, 23896), (1015, 21424), (1030, 21112), (1040, 20909), (1160, 18746), (1339, 16240), (1442, 15080), (1456, 14935), (1508, 14420), (1624, 13390), (1648, 13195), (1820, 11948), (1885, 11536), (2030, 10712), (2060, 10556), (2320, 9373), (2639, 8240), (2678, 8120), (2884, 7540), (2987, 7280), (3016, 7210), (3248, 6695), (3605, 6032), (3640, 5974), (3770, 5768), (4060, 5356), (4120, 5278)]