85642220

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{149}}^1\times {\mathrm{991}}^1$

素因数の和:1178

約数の個数: 48

約数和(自身を含む): 187488000

約数和(自身を除く): 101845780

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 149, 290, 298, 580, 596, 745, 991, 1490, 1982, 2980, 3964, 4321, 4955, 8642, 9910, 17284, 19820, 21605, 28739, 43210, 57478, 86420, 114956, 143695, 147659, 287390, 295318, 574780, 590636, 738295, 1476590, 2953180, 4282111, 8564222, 17128444, 21410555, 42821110, 85642220]

約数ペア:

[(1, 85642220), (2, 42821110), (4, 21410555), (5, 17128444), (10, 8564222), (20, 4282111), (29, 2953180), (58, 1476590), (116, 738295), (145, 590636), (149, 574780), (290, 295318), (298, 287390), (580, 147659), (596, 143695), (745, 114956), (991, 86420), (1490, 57478), (1982, 43210), (2980, 28739), (3964, 21605), (4321, 19820), (4955, 17284), (8642, 9910)]