64397875

素因数分解:

$5^3\times {\mathrm{43}}^1\times {\mathrm{11981}}^1$

素因数の和:12039

約数の個数: 16

約数和(自身を含む): 82244448

約数和(自身を除く): 17846573

約数列:

[1, 5, 25, 43, 125, 215, 1075, 5375, 11981, 59905, 299525, 515183, 1497625, 2575915, 12879575, 64397875]

約数ペア:

[(1, 64397875), (5, 12879575), (25, 2575915), (43, 1497625), (125, 515183), (215, 299525), (1075, 59905), (5375, 11981)]