209570345

素因数分解:

$5^1\times {\mathrm{71}}^1\times {\mathrm{397}}^1\times {\mathrm{1487}}^1$

素因数の和:1960

約数の個数: 16

約数和(自身を含む): 255840768

約数和(自身を除く): 46270423

約数列:

[1, 5, 71, 355, 397, 1487, 1985, 7435, 28187, 105577, 140935, 527885, 590339, 2951695, 41914069, 209570345]

約数ペア:

[(1, 209570345), (5, 41914069), (71, 2951695), (355, 590339), (397, 527885), (1487, 140935), (1985, 105577), (7435, 28187)]