187888910

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{89899}}^1$

素因数の和:89936

約数の個数: 32

約数和(自身を含む): 388368000

約数和(自身を除く): 200479090

約数列:

[1, 2, 5, 10, 11, 19, 22, 38, 55, 95, 110, 190, 209, 418, 1045, 2090, 89899, 179798, 449495, 898990, 988889, 1708081, 1977778, 3416162, 4944445, 8540405, 9888890, 17080810, 18788891, 37577782, 93944455, 187888910]

約数ペア:

[(1, 187888910), (2, 93944455), (5, 37577782), (10, 18788891), (11, 17080810), (19, 9888890), (22, 8540405), (38, 4944445), (55, 3416162), (95, 1977778), (110, 1708081), (190, 988889), (209, 898990), (418, 449495), (1045, 179798), (2090, 89899)]