210824540

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{172807}}^1$

素因数の和:172877

約数の個数: 24

約数和(自身を含む): 449992032

約数和(自身を除く): 239167492

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 172807, 345614, 691228, 864035, 1728070, 3456140, 10541227, 21082454, 42164908, 52706135, 105412270, 210824540]

約数ペア:

[(1, 210824540), (2, 105412270), (4, 52706135), (5, 42164908), (10, 21082454), (20, 10541227), (61, 3456140), (122, 1728070), (244, 864035), (305, 691228), (610, 345614), (1220, 172807)]