81508460

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{370493}}^1$

素因数の和:370513

約数の個数: 24

約数和(自身を含む): 186728976

約数和(自身を除く): 105220516

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 370493, 740986, 1481972, 1852465, 3704930, 4075423, 7409860, 8150846, 16301692, 20377115, 40754230, 81508460]

約数ペア:

[(1, 81508460), (2, 40754230), (4, 20377115), (5, 16301692), (10, 8150846), (11, 7409860), (20, 4075423), (22, 3704930), (44, 1852465), (55, 1481972), (110, 740986), (220, 370493)]