31686320

素因数分解:

$2^4\times 5^1\times {\mathrm{396079}}^1$

素因数の和:396092

約数の個数: 20

約数和(自身を含む): 73670880

約数和(自身を除く): 41984560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 396079, 792158, 1584316, 1980395, 3168632, 3960790, 6337264, 7921580, 15843160, 31686320]

約数ペア:

[(1, 31686320), (2, 15843160), (4, 7921580), (5, 6337264), (8, 3960790), (10, 3168632), (16, 1980395), (20, 1584316), (40, 792158), (80, 396079)]