201520865

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{442903}}^1$

素因数の和:442928

約数の個数: 16

約数和(自身を含む): 297631488

約数和(自身を除く): 96110623

約数列:

[1, 5, 7, 13, 35, 65, 91, 455, 442903, 2214515, 3100321, 5757739, 15501605, 28788695, 40304173, 201520865]

約数ペア:

[(1, 201520865), (5, 40304173), (7, 28788695), (13, 15501605), (35, 5757739), (65, 3100321), (91, 2214515), (455, 442903)]