68368180

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{43271}}^1$

素因数の和:43359

約数の個数: 24

約数和(自身を含む): 145393920

約数和(自身を除く): 77025740

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 43271, 86542, 173084, 216355, 432710, 865420, 3418409, 6836818, 13673636, 17092045, 34184090, 68368180]

約数ペア:

[(1, 68368180), (2, 34184090), (4, 17092045), (5, 13673636), (10, 6836818), (20, 3418409), (79, 865420), (158, 432710), (316, 216355), (395, 173084), (790, 86542), (1580, 43271)]