61238125

素因数分解:

$5^4\times {\mathrm{13}}^1\times {\mathrm{7537}}^1$

素因数の和:7570

約数の個数: 20

約数和(自身を含む): 82420492

約数和(自身を除く): 21182367

約数列:

[1, 5, 13, 25, 65, 125, 325, 625, 1625, 7537, 8125, 37685, 97981, 188425, 489905, 942125, 2449525, 4710625, 12247625, 61238125]

約数ペア:

[(1, 61238125), (5, 12247625), (13, 4710625), (25, 2449525), (65, 942125), (125, 489905), (325, 188425), (625, 97981), (1625, 37685), (7537, 8125)]