217675240

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{102677}}^1$

素因数の和:102741

約数の個数: 32

約数和(自身を含む): 499015080

約数和(自身を除く): 281339840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 424, 530, 1060, 2120, 102677, 205354, 410708, 513385, 821416, 1026770, 2053540, 4107080, 5441881, 10883762, 21767524, 27209405, 43535048, 54418810, 108837620, 217675240]

約数ペア:

[(1, 217675240), (2, 108837620), (4, 54418810), (5, 43535048), (8, 27209405), (10, 21767524), (20, 10883762), (40, 5441881), (53, 4107080), (106, 2053540), (212, 1026770), (265, 821416), (424, 513385), (530, 410708), (1060, 205354), (2120, 102677)]