10200100

素因数分解:

$2^2\times 5^2\times {\mathrm{102001}}^1$

素因数の和:102015

約数の個数: 18

約数和(自身を含む): 22134434

約数和(自身を除く): 11934334

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 102001, 204002, 408004, 510005, 1020010, 2040020, 2550025, 5100050, 10200100]

約数ペア:

[(1, 10200100), (2, 5100050), (4, 2550025), (5, 2040020), (10, 1020010), (20, 510005), (25, 408004), (50, 204002), (100, 102001)]