138907780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{631399}}^1$

素因数の和:631419

約数の個数: 24

約数和(自身を含む): 318225600

約数和(自身を除く): 179317820

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 631399, 1262798, 2525596, 3156995, 6313990, 6945389, 12627980, 13890778, 27781556, 34726945, 69453890, 138907780]

約数ペア:

[(1, 138907780), (2, 69453890), (4, 34726945), (5, 27781556), (10, 13890778), (11, 12627980), (20, 6945389), (22, 6313990), (44, 3156995), (55, 2525596), (110, 1262798), (220, 631399)]