20148490

素因数分解:

$2^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{19949}}^1$

素因数の和:20057

約数の個数: 16

約数和(自身を含む): 36628200

約数和(自身を除く): 16479710

約数列:

[1, 2, 5, 10, 101, 202, 505, 1010, 19949, 39898, 99745, 199490, 2014849, 4029698, 10074245, 20148490]

約数ペア:

[(1, 20148490), (2, 10074245), (5, 4029698), (10, 2014849), (101, 199490), (202, 99745), (505, 39898), (1010, 19949)]