256620975

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{263201}}^1$

素因数の和:263227

約数の個数: 24

約数和(自身を含む): 456918672

約数和(自身を除く): 200297697

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 195, 325, 975, 263201, 789603, 1316005, 3421613, 3948015, 6580025, 10264839, 17108065, 19740075, 51324195, 85540325, 256620975]

約数ペア:

[(1, 256620975), (3, 85540325), (5, 51324195), (13, 19740075), (15, 17108065), (25, 10264839), (39, 6580025), (65, 3948015), (75, 3421613), (195, 1316005), (325, 789603), (975, 263201)]