64635625

素因数分解:

$5^4\times {\mathrm{19}}^1\times {\mathrm{5443}}^1$

素因数の和:5482

約数の個数: 20

約数和(自身を含む): 85035280

約数和(自身を除く): 20399655

約数列:

[1, 5, 19, 25, 95, 125, 475, 625, 2375, 5443, 11875, 27215, 103417, 136075, 517085, 680375, 2585425, 3401875, 12927125, 64635625]

約数ペア:

[(1, 64635625), (5, 12927125), (19, 3401875), (25, 2585425), (95, 680375), (125, 517085), (475, 136075), (625, 103417), (2375, 27215), (5443, 11875)]