789065001020

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{646774591}}^1$

素因数の和:646774661

約数の個数: 24

約数和(自身を含む): 1684201037568

約数和(自身を除く): 895136036548

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 646774591, 1293549182, 2587098364, 3233872955, 6467745910, 12935491820, 39453250051, 78906500102, 157813000204, 197266250255, 394532500510, 789065001020]

約数ペア:

[(1, 789065001020), (2, 394532500510), (4, 197266250255), (5, 157813000204), (10, 78906500102), (20, 39453250051), (61, 12935491820), (122, 6467745910), (244, 3233872955), (305, 2587098364), (610, 1293549182), (1220, 646774591)]