17421625

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{151}}^1$

素因数の和:250

約数の個数: 32

約数和(自身を含む): 23901696

約数和(自身を除く): 6480071

約数列:

[1, 5, 13, 25, 65, 71, 125, 151, 325, 355, 755, 923, 1625, 1775, 1963, 3775, 4615, 8875, 9815, 10721, 18875, 23075, 49075, 53605, 115375, 139373, 245375, 268025, 696865, 1340125, 3484325, 17421625]

約数ペア:

[(1, 17421625), (5, 3484325), (13, 1340125), (25, 696865), (65, 268025), (71, 245375), (125, 139373), (151, 115375), (325, 53605), (355, 49075), (755, 23075), (923, 18875), (1625, 10721), (1775, 9815), (1963, 8875), (3775, 4615)]