28015525

素因数分解:

$5^2\times {\mathrm{47}}^1\times {\mathrm{113}}^1\times {\mathrm{211}}^1$

素因数の和:381

約数の個数: 24

約数和(自身を含む): 35961984

約数和(自身を除く): 7946459

約数列:

[1, 5, 25, 47, 113, 211, 235, 565, 1055, 1175, 2825, 5275, 5311, 9917, 23843, 26555, 49585, 119215, 132775, 247925, 596075, 1120621, 5603105, 28015525]

約数ペア:

[(1, 28015525), (5, 5603105), (25, 1120621), (47, 596075), (113, 247925), (211, 132775), (235, 119215), (565, 49585), (1055, 26555), (1175, 23843), (2825, 9917), (5275, 5311)]