164046320

素因数分解:

$2^4\times 5^1\times {\mathrm{2050579}}^1$

素因数の和:2050592

約数の個数: 20

約数和(自身を含む): 381407880

約数和(自身を除く): 217361560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2050579, 4101158, 8202316, 10252895, 16404632, 20505790, 32809264, 41011580, 82023160, 164046320]

約数ペア:

[(1, 164046320), (2, 82023160), (4, 41011580), (5, 32809264), (8, 20505790), (10, 16404632), (16, 10252895), (20, 8202316), (40, 4101158), (80, 2050579)]