18839540

素因数分解:

$2^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{5779}}^1$

素因数の和:5951

約数の個数: 24

約数和(自身を含む): 39812640

約数和(自身を除く): 20973100

約数列:

[1, 2, 4, 5, 10, 20, 163, 326, 652, 815, 1630, 3260, 5779, 11558, 23116, 28895, 57790, 115580, 941977, 1883954, 3767908, 4709885, 9419770, 18839540]

約数ペア:

[(1, 18839540), (2, 9419770), (4, 4709885), (5, 3767908), (10, 1883954), (20, 941977), (163, 115580), (326, 57790), (652, 28895), (815, 23116), (1630, 11558), (3260, 5779)]