15804080

素因数分解:

$2^4\times 5^1\times {\mathrm{197551}}^1$

素因数の和:197564

約数の個数: 20

約数和(自身を含む): 36744672

約数和(自身を除く): 20940592

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 197551, 395102, 790204, 987755, 1580408, 1975510, 3160816, 3951020, 7902040, 15804080]

約数ペア:

[(1, 15804080), (2, 7902040), (4, 3951020), (5, 3160816), (8, 1975510), (10, 1580408), (16, 987755), (20, 790204), (40, 395102), (80, 197551)]