11199920

素因数分解:

$2^4\times 5^1\times {\mathrm{139999}}^1$

素因数の和:140012

約数の個数: 20

約数和(自身を含む): 26040000

約数和(自身を除く): 14840080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 139999, 279998, 559996, 699995, 1119992, 1399990, 2239984, 2799980, 5599960, 11199920]

約数ペア:

[(1, 11199920), (2, 5599960), (4, 2799980), (5, 2239984), (8, 1399990), (10, 1119992), (16, 699995), (20, 559996), (40, 279998), (80, 139999)]