198817490

素因数分解:

$2^1\times 5^1\times {\mathrm{101}}^2\times {\mathrm{1949}}^1$

素因数の和:2158

約数の個数: 24

約数和(自身を含む): 361635300

約数和(自身を除く): 162817810

約数列:

[1, 2, 5, 10, 101, 202, 505, 1010, 1949, 3898, 9745, 10201, 19490, 20402, 51005, 102010, 196849, 393698, 984245, 1968490, 19881749, 39763498, 99408745, 198817490]

約数ペア:

[(1, 198817490), (2, 99408745), (5, 39763498), (10, 19881749), (101, 1968490), (202, 984245), (505, 393698), (1010, 196849), (1949, 102010), (3898, 51005), (9745, 20402), (10201, 19490)]