317321360

素因数分解:

$2^4\times 5^1\times {\mathrm{3966517}}^1$

素因数の和:3966530

約数の個数: 20

約数和(自身を含む): 737772348

約数和(自身を除く): 420450988

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 3966517, 7933034, 15866068, 19832585, 31732136, 39665170, 63464272, 79330340, 158660680, 317321360]

約数ペア:

[(1, 317321360), (2, 158660680), (4, 79330340), (5, 63464272), (8, 39665170), (10, 31732136), (16, 19832585), (20, 15866068), (40, 7933034), (80, 3966517)]