208066580

素因数分解:

$2^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{69821}}^1$

素因数の和:69979

約数の個数: 24

約数和(自身を含む): 439878600

約数和(自身を除く): 231812020

約数列:

[1, 2, 4, 5, 10, 20, 149, 298, 596, 745, 1490, 2980, 69821, 139642, 279284, 349105, 698210, 1396420, 10403329, 20806658, 41613316, 52016645, 104033290, 208066580]

約数ペア:

[(1, 208066580), (2, 104033290), (4, 52016645), (5, 41613316), (10, 20806658), (20, 10403329), (149, 1396420), (298, 698210), (596, 349105), (745, 279284), (1490, 139642), (2980, 69821)]