218214440

素因数分解:

$2^3\times 5^1\times {\mathrm{5455361}}^1$

素因数の和:5455372

約数の個数: 16

約数和(自身を含む): 490982580

約数和(自身を除く): 272768140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5455361, 10910722, 21821444, 27276805, 43642888, 54553610, 109107220, 218214440]

約数ペア:

[(1, 218214440), (2, 109107220), (4, 54553610), (5, 43642888), (8, 27276805), (10, 21821444), (20, 10910722), (40, 5455361)]