20100200

素因数分解:

$2^3\times 5^2\times {\mathrm{100501}}^1$

素因数の和:100517

約数の個数: 24

約数和(自身を含む): 46733430

約数和(自身を除く): 26633230

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 100501, 201002, 402004, 502505, 804008, 1005010, 2010020, 2512525, 4020040, 5025050, 10050100, 20100200]

約数ペア:

[(1, 20100200), (2, 10050100), (4, 5025050), (5, 4020040), (8, 2512525), (10, 2010020), (20, 1005010), (25, 804008), (40, 502505), (50, 402004), (100, 201002), (200, 100501)]