64171760

素因数分解:

$2^4\times 5^1\times {\mathrm{802147}}^1$

素因数の和:802160

約数の個数: 20

約数和(自身を含む): 149199528

約数和(自身を除く): 85027768

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 802147, 1604294, 3208588, 4010735, 6417176, 8021470, 12834352, 16042940, 32085880, 64171760]

約数ペア:

[(1, 64171760), (2, 32085880), (4, 16042940), (5, 12834352), (8, 8021470), (10, 6417176), (16, 4010735), (20, 3208588), (40, 1604294), (80, 802147)]