2021786780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{165449}}^1$

素因数の和:165518

約数の個数: 48

約数和(自身を含む): 4669660800

約数和(自身を除く): 2647874020

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 47, 52, 65, 94, 130, 188, 235, 260, 470, 611, 940, 1222, 2444, 3055, 6110, 12220, 165449, 330898, 661796, 827245, 1654490, 2150837, 3308980, 4301674, 7776103, 8603348, 10754185, 15552206, 21508370, 31104412, 38880515, 43016740, 77761030, 101089339, 155522060, 202178678, 404357356, 505446695, 1010893390, 2021786780]

約数ペア:

[(1, 2021786780), (2, 1010893390), (4, 505446695), (5, 404357356), (10, 202178678), (13, 155522060), (20, 101089339), (26, 77761030), (47, 43016740), (52, 38880515), (65, 31104412), (94, 21508370), (130, 15552206), (188, 10754185), (235, 8603348), (260, 7776103), (470, 4301674), (611, 3308980), (940, 2150837), (1222, 1654490), (2444, 827245), (3055, 661796), (6110, 330898), (12220, 165449)]