18687580

素因数分解:

$2^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{6271}}^1$

素因数の和:6429

約数の個数: 24

約数和(自身を含む): 39513600

約数和(自身を除く): 20826020

約数列:

[1, 2, 4, 5, 10, 20, 149, 298, 596, 745, 1490, 2980, 6271, 12542, 25084, 31355, 62710, 125420, 934379, 1868758, 3737516, 4671895, 9343790, 18687580]

約数ペア:

[(1, 18687580), (2, 9343790), (4, 4671895), (5, 3737516), (10, 1868758), (20, 934379), (149, 125420), (298, 62710), (596, 31355), (745, 25084), (1490, 12542), (2980, 6271)]