19976540

素因数分解:

$2^2\times 5^1\times {\mathrm{167}}^1\times {\mathrm{5981}}^1$

素因数の和:6157

約数の個数: 24

約数和(自身を含む): 42208992

約数和(自身を除く): 22232452

約数列:

[1, 2, 4, 5, 10, 20, 167, 334, 668, 835, 1670, 3340, 5981, 11962, 23924, 29905, 59810, 119620, 998827, 1997654, 3995308, 4994135, 9988270, 19976540]

約数ペア:

[(1, 19976540), (2, 9988270), (4, 4994135), (5, 3995308), (10, 1997654), (20, 998827), (167, 119620), (334, 59810), (668, 29905), (835, 23924), (1670, 11962), (3340, 5981)]