10390220

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{12671}}^1$

素因数の和:12721

約数の個数: 24

約数和(自身を含む): 22353408

約数和(自身を除く): 11963188

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 12671, 25342, 50684, 63355, 126710, 253420, 519511, 1039022, 2078044, 2597555, 5195110, 10390220]

約数ペア:

[(1, 10390220), (2, 5195110), (4, 2597555), (5, 2078044), (10, 1039022), (20, 519511), (41, 253420), (82, 126710), (164, 63355), (205, 50684), (410, 25342), (820, 12671)]