20258972

素因数分解:

$2^2\times {\mathrm{83}}^1\times {\mathrm{139}}^1\times {\mathrm{439}}^1$

素因数の和:665

約数の個数: 24

約数和(自身を含む): 36220800

約数和(自身を除く): 15961828

約数列:

[1, 2, 4, 83, 139, 166, 278, 332, 439, 556, 878, 1756, 11537, 23074, 36437, 46148, 61021, 72874, 122042, 145748, 244084, 5064743, 10129486, 20258972]

約数ペア:

[(1, 20258972), (2, 10129486), (4, 5064743), (83, 244084), (139, 145748), (166, 122042), (278, 72874), (332, 61021), (439, 46148), (556, 36437), (878, 23074), (1756, 11537)]