81591620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{370871}}^1$

素因数の和:370891

約数の個数: 24

約数和(自身を含む): 186919488

約数和(自身を除く): 105327868

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 370871, 741742, 1483484, 1854355, 3708710, 4079581, 7417420, 8159162, 16318324, 20397905, 40795810, 81591620]

約数ペア:

[(1, 81591620), (2, 40795810), (4, 20397905), (5, 16318324), (10, 8159162), (11, 7417420), (20, 4079581), (22, 3708710), (44, 1854355), (55, 1483484), (110, 741742), (220, 370871)]