18411620

素因数分解:

$2^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{4673}}^1$

素因数の和:4879

約数の個数: 24

約数和(自身を含む): 38868984

約数和(自身を除く): 20457364

約数列:

[1, 2, 4, 5, 10, 20, 197, 394, 788, 985, 1970, 3940, 4673, 9346, 18692, 23365, 46730, 93460, 920581, 1841162, 3682324, 4602905, 9205810, 18411620]

約数ペア:

[(1, 18411620), (2, 9205810), (4, 4602905), (5, 3682324), (10, 1841162), (20, 920581), (197, 93460), (394, 46730), (788, 23365), (985, 18692), (1970, 9346), (3940, 4673)]