2580903

素因数分解:

$3^5\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1$

素因数の和:90

約数の個数: 48

約数和(自身を含む): 4484480

約数和(自身を除く): 1903577

約数列:

[1, 3, 9, 13, 19, 27, 39, 43, 57, 81, 117, 129, 171, 243, 247, 351, 387, 513, 559, 741, 817, 1053, 1161, 1539, 1677, 2223, 2451, 3159, 3483, 4617, 5031, 6669, 7353, 10449, 10621, 15093, 20007, 22059, 31863, 45279, 60021, 66177, 95589, 135837, 198531, 286767, 860301, 2580903]

約数ペア:

[(1, 2580903), (3, 860301), (9, 286767), (13, 198531), (19, 135837), (27, 95589), (39, 66177), (43, 60021), (57, 45279), (81, 31863), (117, 22059), (129, 20007), (171, 15093), (243, 10621), (247, 10449), (351, 7353), (387, 6669), (513, 5031), (559, 4617), (741, 3483), (817, 3159), (1053, 2451), (1161, 2223), (1539, 1677)]