129536360

素因数分解:

$2^3\times 5^1\times {\mathrm{3238409}}^1$

素因数の和:3238420

約数の個数: 16

約数和(自身を含む): 291456900

約数和(自身を除く): 161920540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 3238409, 6476818, 12953636, 16192045, 25907272, 32384090, 64768180, 129536360]

約数ペア:

[(1, 129536360), (2, 64768180), (4, 32384090), (5, 25907272), (8, 16192045), (10, 12953636), (20, 6476818), (40, 3238409)]