256878135

素因数分解:

$3^4\times 5^1\times {\mathrm{634267}}^1$

素因数の和:634284

約数の個数: 20

約数和(自身を含む): 460478568

約数和(自身を除く): 203600433

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 634267, 1902801, 3171335, 5708403, 9514005, 17125209, 28542015, 51375627, 85626045, 256878135]

約数ペア:

[(1, 256878135), (3, 85626045), (5, 51375627), (9, 28542015), (15, 17125209), (27, 9514005), (45, 5708403), (81, 3171335), (135, 1902801), (405, 634267)]