81696625

素因数分解:

$5^3\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{727}}^1$

素因数の和:802

約数の個数: 32

約数和(自身を含む): 109025280

約数和(自身を除く): 27328655

約数列:

[1, 5, 25, 29, 31, 125, 145, 155, 725, 727, 775, 899, 3625, 3635, 3875, 4495, 18175, 21083, 22475, 22537, 90875, 105415, 112375, 112685, 527075, 563425, 653573, 2635375, 2817125, 3267865, 16339325, 81696625]

約数ペア:

[(1, 81696625), (5, 16339325), (25, 3267865), (29, 2817125), (31, 2635375), (125, 653573), (145, 563425), (155, 527075), (725, 112685), (727, 112375), (775, 105415), (899, 90875), (3625, 22537), (3635, 22475), (3875, 21083), (4495, 18175)]