20325050

素因数分解:

$2^1\times 5^2\times {\mathrm{406501}}^1$

素因数の和:406513

約数の個数: 12

約数和(自身を含む): 37804686

約数和(自身を除く): 17479636

約数列:

[1, 2, 5, 10, 25, 50, 406501, 813002, 2032505, 4065010, 10162525, 20325050]

約数ペア:

[(1, 20325050), (2, 10162525), (5, 4065010), (10, 2032505), (25, 813002), (50, 406501)]