18801080

素因数分解:

$2^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{3701}}^1$

素因数の和:3839

約数の個数: 32

約数和(自身を含む): 42647040

約数和(自身を除く): 23845960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 127, 254, 508, 635, 1016, 1270, 2540, 3701, 5080, 7402, 14804, 18505, 29608, 37010, 74020, 148040, 470027, 940054, 1880108, 2350135, 3760216, 4700270, 9400540, 18801080]

約数ペア:

[(1, 18801080), (2, 9400540), (4, 4700270), (5, 3760216), (8, 2350135), (10, 1880108), (20, 940054), (40, 470027), (127, 148040), (254, 74020), (508, 37010), (635, 29608), (1016, 18505), (1270, 14804), (2540, 7402), (3701, 5080)]