260080

素因数分解:

$2^4\times 5^1\times {\mathrm{3251}}^1$

素因数の和:3264

約数の個数: 20

約数和(自身を含む): 604872

約数和(自身を除く): 344792

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 3251, 6502, 13004, 16255, 26008, 32510, 52016, 65020, 130040, 260080]

約数ペア:

[(1, 260080), (2, 130040), (4, 65020), (5, 52016), (8, 32510), (10, 26008), (16, 16255), (20, 13004), (40, 6502), (80, 3251)]