407996860

素因数分解:

$2^2\times 5^1\times {\mathrm{307}}^1\times {\mathrm{66449}}^1$

素因数の和:66765

約数の個数: 24

約数和(自身を含む): 859597200

約数和(自身を除く): 451600340

約数列:

[1, 2, 4, 5, 10, 20, 307, 614, 1228, 1535, 3070, 6140, 66449, 132898, 265796, 332245, 664490, 1328980, 20399843, 40799686, 81599372, 101999215, 203998430, 407996860]

約数ペア:

[(1, 407996860), (2, 203998430), (4, 101999215), (5, 81599372), (10, 40799686), (20, 20399843), (307, 1328980), (614, 664490), (1228, 332245), (1535, 265796), (3070, 132898), (6140, 66449)]