18914540

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{55631}}^1$

素因数の和:55657

約数の個数: 24

約数和(自身を含む): 42057792

約数和(自身を除く): 23143252

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 55631, 111262, 222524, 278155, 556310, 945727, 1112620, 1891454, 3782908, 4728635, 9457270, 18914540]

約数ペア:

[(1, 18914540), (2, 9457270), (4, 4728635), (5, 3782908), (10, 1891454), (17, 1112620), (20, 945727), (34, 556310), (68, 278155), (85, 222524), (170, 111262), (340, 55631)]