82161875

素因数分解:

$5^4\times {\mathrm{47}}^1\times {\mathrm{2797}}^1$

素因数の和:2864

約数の個数: 20

約数和(自身を含む): 104891424

約数和(自身を除く): 22729549

約数列:

[1, 5, 25, 47, 125, 235, 625, 1175, 2797, 5875, 13985, 29375, 69925, 131459, 349625, 657295, 1748125, 3286475, 16432375, 82161875]

約数ペア:

[(1, 82161875), (5, 16432375), (25, 3286475), (47, 1748125), (125, 657295), (235, 349625), (625, 131459), (1175, 69925), (2797, 29375), (5875, 13985)]