261738135

素因数分解:

$3^4\times 5^1\times {\mathrm{646267}}^1$

素因数の和:646284

約数の個数: 20

約数和(自身を含む): 469190568

約数和(自身を除く): 207452433

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 646267, 1938801, 3231335, 5816403, 9694005, 17449209, 29082015, 52347627, 87246045, 261738135]

約数ペア:

[(1, 261738135), (3, 87246045), (5, 52347627), (9, 29082015), (15, 17449209), (27, 9694005), (45, 5816403), (81, 3231335), (135, 1938801), (405, 646267)]