212100820

素因数分解:

$2^2\times 5^1\times {\mathrm{1229}}^1\times {\mathrm{8629}}^1$

素因数の和:9867

約数の個数: 24

約数和(自身を含む): 445825800

約数和(自身を除く): 233724980

約数列:

[1, 2, 4, 5, 10, 20, 1229, 2458, 4916, 6145, 8629, 12290, 17258, 24580, 34516, 43145, 86290, 172580, 10605041, 21210082, 42420164, 53025205, 106050410, 212100820]

約数ペア:

[(1, 212100820), (2, 106050410), (4, 53025205), (5, 42420164), (10, 21210082), (20, 10605041), (1229, 172580), (2458, 86290), (4916, 43145), (6145, 34516), (8629, 24580), (12290, 17258)]