1775448740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{220279}}^1$

素因数の和:220332

約数の個数: 48

約数和(自身を含む): 4144788480

約数和(自身を除く): 2369339740

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 260, 310, 403, 620, 806, 1612, 2015, 4030, 8060, 220279, 440558, 881116, 1101395, 2202790, 2863627, 4405580, 5727254, 6828649, 11454508, 13657298, 14318135, 27314596, 28636270, 34143245, 57272540, 68286490, 88772437, 136572980, 177544874, 355089748, 443862185, 887724370, 1775448740]

約数ペア:

[(1, 1775448740), (2, 887724370), (4, 443862185), (5, 355089748), (10, 177544874), (13, 136572980), (20, 88772437), (26, 68286490), (31, 57272540), (52, 34143245), (62, 28636270), (65, 27314596), (124, 14318135), (130, 13657298), (155, 11454508), (260, 6828649), (310, 5727254), (403, 4405580), (620, 2863627), (806, 2202790), (1612, 1101395), (2015, 881116), (4030, 440558), (8060, 220279)]