20137115

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{229}}^1\times {\mathrm{409}}^1$

素因数の和:686

約数の個数: 16

約数和(自身を含む): 24895200

約数和(自身を除く): 4758085

約数列:

[1, 5, 43, 215, 229, 409, 1145, 2045, 9847, 17587, 49235, 87935, 93661, 468305, 4027423, 20137115]

約数ペア:

[(1, 20137115), (5, 4027423), (43, 468305), (215, 93661), (229, 87935), (409, 49235), (1145, 17587), (2045, 9847)]