20946980

素因数分解:

$2^2\times 5^1\times {\mathrm{349}}^1\times {\mathrm{3001}}^1$

素因数の和:3359

約数の個数: 24

約数和(自身を含む): 44129400

約数和(自身を除く): 23182420

約数列:

[1, 2, 4, 5, 10, 20, 349, 698, 1396, 1745, 3001, 3490, 6002, 6980, 12004, 15005, 30010, 60020, 1047349, 2094698, 4189396, 5236745, 10473490, 20946980]

約数ペア:

[(1, 20946980), (2, 10473490), (4, 5236745), (5, 4189396), (10, 2094698), (20, 1047349), (349, 60020), (698, 30010), (1396, 15005), (1745, 12004), (3001, 6980), (3490, 6002)]