256431072740

素因数分解:

$2^2\times 5^1\times {\mathrm{251}}^1\times {\mathrm{443}}^1\times {\mathrm{115309}}^1$

素因数の和:116012

約数の個数: 48

約数和(自身を含む): 541875821760

約数和(自身を除く): 285444749020

約数列:

[1, 2, 4, 5, 10, 20, 251, 443, 502, 886, 1004, 1255, 1772, 2215, 2510, 4430, 5020, 8860, 111193, 115309, 222386, 230618, 444772, 461236, 555965, 576545, 1111930, 1153090, 2223860, 2306180, 28942559, 51081887, 57885118, 102163774, 115770236, 144712795, 204327548, 255409435, 289425590, 510818870, 578851180, 1021637740, 12821553637, 25643107274, 51286214548, 64107768185, 128215536370, 256431072740]

約数ペア:

[(1, 256431072740), (2, 128215536370), (4, 64107768185), (5, 51286214548), (10, 25643107274), (20, 12821553637), (251, 1021637740), (443, 578851180), (502, 510818870), (886, 289425590), (1004, 255409435), (1255, 204327548), (1772, 144712795), (2215, 115770236), (2510, 102163774), (4430, 57885118), (5020, 51081887), (8860, 28942559), (111193, 2306180), (115309, 2223860), (222386, 1153090), (230618, 1111930), (444772, 576545), (461236, 555965)]