18908360

素因数分解:

$2^3\times 5^1\times {\mathrm{472709}}^1$

素因数の和:472720

約数の個数: 16

約数和(自身を含む): 42543900

約数和(自身を除く): 23635540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 472709, 945418, 1890836, 2363545, 3781672, 4727090, 9454180, 18908360]

約数ペア:

[(1, 18908360), (2, 9454180), (4, 4727090), (5, 3781672), (8, 2363545), (10, 1890836), (20, 945418), (40, 472709)]