218218760

素因数分解:

$2^3\times 5^1\times {\mathrm{5455469}}^1$

素因数の和:5455480

約数の個数: 16

約数和(自身を含む): 490992300

約数和(自身を除く): 272773540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5455469, 10910938, 21821876, 27277345, 43643752, 54554690, 109109380, 218218760]

約数ペア:

[(1, 218218760), (2, 109109380), (4, 54554690), (5, 43643752), (8, 27277345), (10, 21821876), (20, 10910938), (40, 5455469)]