3648125

素因数分解:

$5^4\times {\mathrm{13}}^1\times {\mathrm{449}}^1$

素因数の和:482

約数の個数: 20

約数和(自身を含む): 4920300

約数和(自身を除く): 1272175

約数列:

[1, 5, 13, 25, 65, 125, 325, 449, 625, 1625, 2245, 5837, 8125, 11225, 29185, 56125, 145925, 280625, 729625, 3648125]

約数ペア:

[(1, 3648125), (5, 729625), (13, 280625), (25, 145925), (65, 56125), (125, 29185), (325, 11225), (449, 8125), (625, 5837), (1625, 2245)]