201720290

素因数分解:

$2^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{330689}}^1$

素因数の和:330757

約数の個数: 16

約数和(自身を含む): 369050040

約数和(自身を除く): 167329750

約数列:

[1, 2, 5, 10, 61, 122, 305, 610, 330689, 661378, 1653445, 3306890, 20172029, 40344058, 100860145, 201720290]

約数ペア:

[(1, 201720290), (2, 100860145), (5, 40344058), (10, 20172029), (61, 3306890), (122, 1653445), (305, 661378), (610, 330689)]