20672660

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{33343}}^1$

素因数の和:33383

約数の個数: 24

約数和(自身を含む): 44814336

約数和(自身を除く): 24141676

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 33343, 66686, 133372, 166715, 333430, 666860, 1033633, 2067266, 4134532, 5168165, 10336330, 20672660]

約数ペア:

[(1, 20672660), (2, 10336330), (4, 5168165), (5, 4134532), (10, 2067266), (20, 1033633), (31, 666860), (62, 333430), (124, 166715), (155, 133372), (310, 66686), (620, 33343)]