80761250

素因数分解:

$2^1\times 5^4\times {\mathrm{64609}}^1$

素因数の和:64631

約数の個数: 20

約数和(自身を含む): 151381230

約数和(自身を除く): 70619980

約数列:

[1, 2, 5, 10, 25, 50, 125, 250, 625, 1250, 64609, 129218, 323045, 646090, 1615225, 3230450, 8076125, 16152250, 40380625, 80761250]

約数ペア:

[(1, 80761250), (2, 40380625), (5, 16152250), (10, 8076125), (25, 3230450), (50, 1615225), (125, 646090), (250, 323045), (625, 129218), (1250, 64609)]