261749125

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{4643}}^1$

素因数の和:4710

約数の個数: 32

約数和(自身を含む): 365129856

約数和(自身を除く): 103380731

約数列:

[1, 5, 11, 25, 41, 55, 125, 205, 275, 451, 1025, 1375, 2255, 4643, 5125, 11275, 23215, 51073, 56375, 116075, 190363, 255365, 580375, 951815, 1276825, 2093993, 4759075, 6384125, 10469965, 23795375, 52349825, 261749125]

約数ペア:

[(1, 261749125), (5, 52349825), (11, 23795375), (25, 10469965), (41, 6384125), (55, 4759075), (125, 2093993), (205, 1276825), (275, 951815), (451, 580375), (1025, 255365), (1375, 190363), (2255, 116075), (4643, 56375), (5125, 51073), (11275, 23215)]