64745980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{277}}^1$

素因数の和:359

約数の個数: 96

約数和(自身を含む): 156925440

約数和(自身を除く): 92179460

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 29, 31, 52, 58, 62, 65, 116, 124, 130, 145, 155, 260, 277, 290, 310, 377, 403, 554, 580, 620, 754, 806, 899, 1108, 1385, 1508, 1612, 1798, 1885, 2015, 2770, 3596, 3601, 3770, 4030, 4495, 5540, 7202, 7540, 8033, 8060, 8587, 8990, 11687, 14404, 16066, 17174, 17980, 18005, 23374, 32132, 34348, 36010, 40165, 42935, 46748, 58435, 72020, 80330, 85870, 104429, 111631, 116870, 160660, 171740, 208858, 223262, 233740, 249023, 417716, 446524, 498046, 522145, 558155, 996092, 1044290, 1116310, 1245115, 2088580, 2232620, 2490230, 3237299, 4980460, 6474598, 12949196, 16186495, 32372990, 64745980]

約数ペア:

[(1, 64745980), (2, 32372990), (4, 16186495), (5, 12949196), (10, 6474598), (13, 4980460), (20, 3237299), (26, 2490230), (29, 2232620), (31, 2088580), (52, 1245115), (58, 1116310), (62, 1044290), (65, 996092), (116, 558155), (124, 522145), (130, 498046), (145, 446524), (155, 417716), (260, 249023), (277, 233740), (290, 223262), (310, 208858), (377, 171740), (403, 160660), (554, 116870), (580, 111631), (620, 104429), (754, 85870), (806, 80330), (899, 72020), (1108, 58435), (1385, 46748), (1508, 42935), (1612, 40165), (1798, 36010), (1885, 34348), (2015, 32132), (2770, 23374), (3596, 18005), (3601, 17980), (3770, 17174), (4030, 16066), (4495, 14404), (5540, 11687), (7202, 8990), (7540, 8587), (8033, 8060)]