830090020

素因数分解:

$2^2\times 5^1\times {\mathrm{239}}^1\times {\mathrm{173659}}^1$

素因数の和:173907

約数の個数: 24

約数和(自身を含む): 1750492800

約数和(自身を除く): 920402780

約数列:

[1, 2, 4, 5, 10, 20, 239, 478, 956, 1195, 2390, 4780, 173659, 347318, 694636, 868295, 1736590, 3473180, 41504501, 83009002, 166018004, 207522505, 415045010, 830090020]

約数ペア:

[(1, 830090020), (2, 415045010), (4, 207522505), (5, 166018004), (10, 83009002), (20, 41504501), (239, 3473180), (478, 1736590), (956, 868295), (1195, 694636), (2390, 347318), (4780, 173659)]