64709125

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{39821}}^1$

素因数の和:39849

約数の個数: 16

約数和(自身を含む): 86971248

約数和(自身を除く): 22262123

約数列:

[1, 5, 13, 25, 65, 125, 325, 1625, 39821, 199105, 517673, 995525, 2588365, 4977625, 12941825, 64709125]

約数ペア:

[(1, 64709125), (5, 12941825), (13, 4977625), (25, 2588365), (65, 995525), (125, 517673), (325, 199105), (1625, 39821)]