20310320

素因数分解:

$2^4\times 5^1\times {\mathrm{253879}}^1$

素因数の和:253892

約数の個数: 20

約数和(自身を含む): 47221680

約数和(自身を除く): 26911360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 253879, 507758, 1015516, 1269395, 2031032, 2538790, 4062064, 5077580, 10155160, 20310320]

約数ペア:

[(1, 20310320), (2, 10155160), (4, 5077580), (5, 4062064), (8, 2538790), (10, 2031032), (16, 1269395), (20, 1015516), (40, 507758), (80, 253879)]