81295175

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{8069}}^1$

素因数の和:8123

約数の個数: 24

約数和(自身を含む): 112076160

約数和(自身を除く): 30780985

約数列:

[1, 5, 13, 25, 31, 65, 155, 325, 403, 775, 2015, 8069, 10075, 40345, 104897, 201725, 250139, 524485, 1250695, 2622425, 3251807, 6253475, 16259035, 81295175]

約数ペア:

[(1, 81295175), (5, 16259035), (13, 6253475), (25, 3251807), (31, 2622425), (65, 1250695), (155, 524485), (325, 250139), (403, 201725), (775, 104897), (2015, 40345), (8069, 10075)]