64640728

素因数分解:

$2^3\times {\mathrm{311}}^1\times {\mathrm{25981}}^1$

素因数の和:26298

約数の個数: 16

約数和(自身を含む): 121595760

約数和(自身を除く): 56955032

約数列:

[1, 2, 4, 8, 311, 622, 1244, 2488, 25981, 51962, 103924, 207848, 8080091, 16160182, 32320364, 64640728]

約数ペア:

[(1, 64640728), (2, 32320364), (4, 16160182), (8, 8080091), (311, 207848), (622, 103924), (1244, 51962), (2488, 25981)]