81122480

素因数分解:

$2^4\times 5^1\times {\mathrm{881}}^1\times {\mathrm{1151}}^1$

素因数の和:2045

約数の個数: 40

約数和(自身を含む): 188987904

約数和(自身を除く): 107865424

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 881, 1151, 1762, 2302, 3524, 4405, 4604, 5755, 7048, 8810, 9208, 11510, 14096, 17620, 18416, 23020, 35240, 46040, 70480, 92080, 1014031, 2028062, 4056124, 5070155, 8112248, 10140310, 16224496, 20280620, 40561240, 81122480]

約数ペア:

[(1, 81122480), (2, 40561240), (4, 20280620), (5, 16224496), (8, 10140310), (10, 8112248), (16, 5070155), (20, 4056124), (40, 2028062), (80, 1014031), (881, 92080), (1151, 70480), (1762, 46040), (2302, 35240), (3524, 23020), (4405, 18416), (4604, 17620), (5755, 14096), (7048, 11510), (8810, 9208)]