221528740

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{270157}}^1$

素因数の和:270207

約数の個数: 24

約数和(自身を含む): 476558712

約数和(自身を除く): 255029972

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 270157, 540314, 1080628, 1350785, 2701570, 5403140, 11076437, 22152874, 44305748, 55382185, 110764370, 221528740]

約数ペア:

[(1, 221528740), (2, 110764370), (4, 55382185), (5, 44305748), (10, 22152874), (20, 11076437), (41, 5403140), (82, 2701570), (164, 1350785), (205, 1080628), (410, 540314), (820, 270157)]