19765960

素因数分解:

$2^3\times 5^1\times {\mathrm{113}}^1\times {\mathrm{4373}}^1$

素因数の和:4497

約数の個数: 32

約数和(自身を含む): 44877240

約数和(自身を除く): 25111280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 113, 226, 452, 565, 904, 1130, 2260, 4373, 4520, 8746, 17492, 21865, 34984, 43730, 87460, 174920, 494149, 988298, 1976596, 2470745, 3953192, 4941490, 9882980, 19765960]

約数ペア:

[(1, 19765960), (2, 9882980), (4, 4941490), (5, 3953192), (8, 2470745), (10, 1976596), (20, 988298), (40, 494149), (113, 174920), (226, 87460), (452, 43730), (565, 34984), (904, 21865), (1130, 17492), (2260, 8746), (4373, 4520)]