31710320

素因数分解:

$2^4\times 5^1\times {\mathrm{396379}}^1$

素因数の和:396392

約数の個数: 20

約数和(自身を含む): 73726680

約数和(自身を除く): 42016360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 396379, 792758, 1585516, 1981895, 3171032, 3963790, 6342064, 7927580, 15855160, 31710320]

約数ペア:

[(1, 31710320), (2, 15855160), (4, 7927580), (5, 6342064), (8, 3963790), (10, 3171032), (16, 1981895), (20, 1585516), (40, 792758), (80, 396379)]