280400025

素因数分解:

$3^1\times 5^2\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{1361}}^1$

素因数の和:1482

約数の個数: 48

約数和(自身を含む): 482344128

約数和(自身を除く): 201944103

約数列:

[1, 3, 5, 15, 25, 41, 67, 75, 123, 201, 205, 335, 615, 1005, 1025, 1361, 1675, 2747, 3075, 4083, 5025, 6805, 8241, 13735, 20415, 34025, 41205, 55801, 68675, 91187, 102075, 167403, 206025, 273561, 279005, 455935, 837015, 1367805, 1395025, 2279675, 3738667, 4185075, 6839025, 11216001, 18693335, 56080005, 93466675, 280400025]

約数ペア:

[(1, 280400025), (3, 93466675), (5, 56080005), (15, 18693335), (25, 11216001), (41, 6839025), (67, 4185075), (75, 3738667), (123, 2279675), (201, 1395025), (205, 1367805), (335, 837015), (615, 455935), (1005, 279005), (1025, 273561), (1361, 206025), (1675, 167403), (2747, 102075), (3075, 91187), (4083, 68675), (5025, 55801), (6805, 41205), (8241, 34025), (13735, 20415)]