20150525

素因数分解:

$5^2\times {\mathrm{17}}^2\times {\mathrm{2789}}^1$

素因数の和:2833

約数の個数: 18

約数和(自身を含む): 26552430

約数和(自身を除く): 6401905

約数列:

[1, 5, 17, 25, 85, 289, 425, 1445, 2789, 7225, 13945, 47413, 69725, 237065, 806021, 1185325, 4030105, 20150525]

約数ペア:

[(1, 20150525), (5, 4030105), (17, 1185325), (25, 806021), (85, 237065), (289, 69725), (425, 47413), (1445, 13945), (2789, 7225)]