81998510

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{239}}^1\times {\mathrm{3119}}^1$

素因数の和:3376

約数の個数: 32

約数和(自身を含む): 161740800

約数和(自身を除く): 79742290

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 239, 478, 1195, 2390, 2629, 3119, 5258, 6238, 13145, 15595, 26290, 31190, 34309, 68618, 171545, 343090, 745441, 1490882, 3727205, 7454410, 8199851, 16399702, 40999255, 81998510]

約数ペア:

[(1, 81998510), (2, 40999255), (5, 16399702), (10, 8199851), (11, 7454410), (22, 3727205), (55, 1490882), (110, 745441), (239, 343090), (478, 171545), (1195, 68618), (2390, 34309), (2629, 31190), (3119, 26290), (5258, 15595), (6238, 13145)]