66824375

素因数分解:

$5^4\times {\mathrm{31}}^1\times {\mathrm{3449}}^1$

素因数の和:3500

約数の個数: 20

約数和(自身を含む): 86222400

約数和(自身を除く): 19398025

約数列:

[1, 5, 25, 31, 125, 155, 625, 775, 3449, 3875, 17245, 19375, 86225, 106919, 431125, 534595, 2155625, 2672975, 13364875, 66824375]

約数ペア:

[(1, 66824375), (5, 13364875), (25, 2672975), (31, 2155625), (125, 534595), (155, 431125), (625, 106919), (775, 86225), (3449, 19375), (3875, 17245)]