20869394520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{523}}^1\times {\mathrm{25579}}^1$

素因数の和:26129

約数の個数: 128

約数和(自身を含む): 67555756800

約数和(自身を除く): 46686362280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 523, 780, 1046, 1560, 1569, 2092, 2615, 3138, 4184, 5230, 6276, 6799, 7845, 10460, 12552, 13598, 15690, 20397, 20920, 25579, 27196, 31380, 33995, 40794, 51158, 54392, 62760, 67990, 76737, 81588, 101985, 102316, 127895, 135980, 153474, 163176, 203970, 204632, 255790, 271960, 306948, 332527, 383685, 407940, 511580, 613896, 665054, 767370, 815880, 997581, 1023160, 1330108, 1534740, 1662635, 1995162, 2660216, 3069480, 3325270, 3990324, 4987905, 6650540, 7980648, 9975810, 13301080, 13377817, 19951620, 26755634, 39903240, 40133451, 53511268, 66889085, 80266902, 107022536, 133778170, 160533804, 173911621, 200667255, 267556340, 321067608, 347823242, 401334510, 521734863, 535112680, 695646484, 802669020, 869558105, 1043469726, 1391292968, 1605338040, 1739116210, 2086939452, 2608674315, 3478232420, 4173878904, 5217348630, 6956464840, 10434697260, 20869394520]

約数ペア:

[(1, 20869394520), (2, 10434697260), (3, 6956464840), (4, 5217348630), (5, 4173878904), (6, 3478232420), (8, 2608674315), (10, 2086939452), (12, 1739116210), (13, 1605338040), (15, 1391292968), (20, 1043469726), (24, 869558105), (26, 802669020), (30, 695646484), (39, 535112680), (40, 521734863), (52, 401334510), (60, 347823242), (65, 321067608), (78, 267556340), (104, 200667255), (120, 173911621), (130, 160533804), (156, 133778170), (195, 107022536), (260, 80266902), (312, 66889085), (390, 53511268), (520, 40133451), (523, 39903240), (780, 26755634), (1046, 19951620), (1560, 13377817), (1569, 13301080), (2092, 9975810), (2615, 7980648), (3138, 6650540), (4184, 4987905), (5230, 3990324), (6276, 3325270), (6799, 3069480), (7845, 2660216), (10460, 1995162), (12552, 1662635), (13598, 1534740), (15690, 1330108), (20397, 1023160), (20920, 997581), (25579, 815880), (27196, 767370), (31380, 665054), (33995, 613896), (40794, 511580), (51158, 407940), (54392, 383685), (62760, 332527), (67990, 306948), (76737, 271960), (81588, 255790), (101985, 204632), (102316, 203970), (127895, 163176), (135980, 153474)]