18985090

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{181}}^1\times {\mathrm{617}}^1$

素因数の和:822

約数の個数: 32

約数和(自身を含む): 36442224

約数和(自身を除く): 17457134

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 181, 362, 617, 905, 1234, 1810, 3077, 3085, 6154, 6170, 10489, 15385, 20978, 30770, 52445, 104890, 111677, 223354, 558385, 1116770, 1898509, 3797018, 9492545, 18985090]

約数ペア:

[(1, 18985090), (2, 9492545), (5, 3797018), (10, 1898509), (17, 1116770), (34, 558385), (85, 223354), (170, 111677), (181, 104890), (362, 52445), (617, 30770), (905, 20978), (1234, 15385), (1810, 10489), (3077, 6170), (3085, 6154)]