255587385

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{181}}^1\times {\mathrm{4093}}^1$

素因数の和:4305

約数の個数: 32

約数和(自身を含む): 429182208

約数和(自身を除く): 173594823

約数列:

[1, 3, 5, 15, 23, 69, 115, 181, 345, 543, 905, 2715, 4093, 4163, 12279, 12489, 20465, 20815, 61395, 62445, 94139, 282417, 470695, 740833, 1412085, 2222499, 3704165, 11112495, 17039159, 51117477, 85195795, 255587385]

約数ペア:

[(1, 255587385), (3, 85195795), (5, 51117477), (15, 17039159), (23, 11112495), (69, 3704165), (115, 2222499), (181, 1412085), (345, 740833), (543, 470695), (905, 282417), (2715, 94139), (4093, 62445), (4163, 61395), (12279, 20815), (12489, 20465)]