18976540

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{86257}}^1$

素因数の和:86277

約数の個数: 24

約数和(自身を含む): 43474032

約数和(自身を除く): 24497492

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 86257, 172514, 345028, 431285, 862570, 948827, 1725140, 1897654, 3795308, 4744135, 9488270, 18976540]

約数ペア:

[(1, 18976540), (2, 9488270), (4, 4744135), (5, 3795308), (10, 1897654), (11, 1725140), (20, 948827), (22, 862570), (44, 431285), (55, 345028), (110, 172514), (220, 86257)]