28317460

素因数分解:

$2^2\times 5^1\times {\mathrm{709}}^1\times {\mathrm{1997}}^1$

素因数の和:2715

約数の個数: 24

約数和(自身を含む): 59580360

約数和(自身を除く): 31262900

約数列:

[1, 2, 4, 5, 10, 20, 709, 1418, 1997, 2836, 3545, 3994, 7090, 7988, 9985, 14180, 19970, 39940, 1415873, 2831746, 5663492, 7079365, 14158730, 28317460]

約数ペア:

[(1, 28317460), (2, 14158730), (4, 7079365), (5, 5663492), (10, 2831746), (20, 1415873), (709, 39940), (1418, 19970), (1997, 14180), (2836, 9985), (3545, 7988), (3994, 7090)]