218108360

素因数分解:

$2^3\times 5^1\times {\mathrm{5452709}}^1$

素因数の和:5452720

約数の個数: 16

約数和(自身を含む): 490743900

約数和(自身を除く): 272635540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5452709, 10905418, 21810836, 27263545, 43621672, 54527090, 109054180, 218108360]

約数ペア:

[(1, 218108360), (2, 109054180), (4, 54527090), (5, 43621672), (8, 27263545), (10, 21810836), (20, 10905418), (40, 5452709)]