278322220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1265101}}^1$

素因数の和:1265121

約数の個数: 24

約数和(自身を含む): 637611408

約数和(自身を除く): 359289188

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 1265101, 2530202, 5060404, 6325505, 12651010, 13916111, 25302020, 27832222, 55664444, 69580555, 139161110, 278322220]

約数ペア:

[(1, 278322220), (2, 139161110), (4, 69580555), (5, 55664444), (10, 27832222), (11, 25302020), (20, 13916111), (22, 12651010), (44, 6325505), (55, 5060404), (110, 2530202), (220, 1265101)]