131778580

素因数分解:

$2^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{44221}}^1$

素因数の和:44379

約数の個数: 24

約数和(自身を含む): 278598600

約数和(自身を除く): 146820020

約数列:

[1, 2, 4, 5, 10, 20, 149, 298, 596, 745, 1490, 2980, 44221, 88442, 176884, 221105, 442210, 884420, 6588929, 13177858, 26355716, 32944645, 65889290, 131778580]

約数ペア:

[(1, 131778580), (2, 65889290), (4, 32944645), (5, 26355716), (10, 13177858), (20, 6588929), (149, 884420), (298, 442210), (596, 221105), (745, 176884), (1490, 88442), (2980, 44221)]