20268505

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{3559}}^1$

素因数の和:3648

約数の個数: 16

約数和(自身を含む): 26144640

約数和(自身を除く): 5876135

約数列:

[1, 5, 17, 67, 85, 335, 1139, 3559, 5695, 17795, 60503, 238453, 302515, 1192265, 4053701, 20268505]

約数ペア:

[(1, 20268505), (5, 4053701), (17, 1192265), (67, 302515), (85, 238453), (335, 60503), (1139, 17795), (3559, 5695)]