90807830

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{223}}^1\times {\mathrm{947}}^1$

素因数の和:1220

約数の個数: 32

約数和(自身を含む): 168182784

約数和(自身を除く): 77374954

約数列:

[1, 2, 5, 10, 43, 86, 215, 223, 430, 446, 947, 1115, 1894, 2230, 4735, 9470, 9589, 19178, 40721, 47945, 81442, 95890, 203605, 211181, 407210, 422362, 1055905, 2111810, 9080783, 18161566, 45403915, 90807830]

約数ペア:

[(1, 90807830), (2, 45403915), (5, 18161566), (10, 9080783), (43, 2111810), (86, 1055905), (215, 422362), (223, 407210), (430, 211181), (446, 203605), (947, 95890), (1115, 81442), (1894, 47945), (2230, 40721), (4735, 19178), (9470, 9589)]