63890125

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{39317}}^1$

素因数の和:39345

約数の個数: 16

約数和(自身を含む): 85870512

約数和(自身を除く): 21980387

約数列:

[1, 5, 13, 25, 65, 125, 325, 1625, 39317, 196585, 511121, 982925, 2555605, 4914625, 12778025, 63890125]

約数ペア:

[(1, 63890125), (5, 12778025), (13, 4914625), (25, 2555605), (65, 982925), (125, 511121), (325, 196585), (1625, 39317)]