318644720

素因数分解:

$2^4\times 5^1\times {\mathrm{3983059}}^1$

素因数の和:3983072

約数の個数: 20

約数和(自身を含む): 740849160

約数和(自身を除く): 422204440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 3983059, 7966118, 15932236, 19915295, 31864472, 39830590, 63728944, 79661180, 159322360, 318644720]

約数ペア:

[(1, 318644720), (2, 159322360), (4, 79661180), (5, 63728944), (8, 39830590), (10, 31864472), (16, 19915295), (20, 15932236), (40, 7966118), (80, 3983059)]