111231920

素因数分解:

$2^4\times 5^1\times {\mathrm{1390399}}^1$

素因数の和:1390412

約数の個数: 20

約数和(自身を含む): 258614400

約数和(自身を除く): 147382480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1390399, 2780798, 5561596, 6951995, 11123192, 13903990, 22246384, 27807980, 55615960, 111231920]

約数ペア:

[(1, 111231920), (2, 55615960), (4, 27807980), (5, 22246384), (8, 13903990), (10, 11123192), (16, 6951995), (20, 5561596), (40, 2780798), (80, 1390399)]