1321575

素因数分解:

$3^1\times 5^2\times {\mathrm{67}}^1\times {\mathrm{263}}^1$

素因数の和:343

約数の個数: 24

約数和(自身を含む): 2226048

約数和(自身を除く): 904473

約数列:

[1, 3, 5, 15, 25, 67, 75, 201, 263, 335, 789, 1005, 1315, 1675, 3945, 5025, 6575, 17621, 19725, 52863, 88105, 264315, 440525, 1321575]

約数ペア:

[(1, 1321575), (3, 440525), (5, 264315), (15, 88105), (25, 52863), (67, 19725), (75, 17621), (201, 6575), (263, 5025), (335, 3945), (789, 1675), (1005, 1315)]