81885855

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{317}}^1\times {\mathrm{1013}}^1$

素因数の和:1355

約数の個数: 32

約数和(自身を含む): 139299264

約数和(自身を除く): 57413409

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 317, 951, 1013, 1585, 3039, 4755, 5065, 5389, 15195, 16167, 17221, 26945, 51663, 80835, 86105, 258315, 321121, 963363, 1605605, 4816815, 5459057, 16377171, 27295285, 81885855]

約数ペア:

[(1, 81885855), (3, 27295285), (5, 16377171), (15, 5459057), (17, 4816815), (51, 1605605), (85, 963363), (255, 321121), (317, 258315), (951, 86105), (1013, 80835), (1585, 51663), (3039, 26945), (4755, 17221), (5065, 16167), (5389, 15195)]