21800360

素因数分解:

$2^3\times 5^1\times {\mathrm{383}}^1\times {\mathrm{1423}}^1$

素因数の和:1817

約数の個数: 32

約数和(自身を含む): 49213440

約数和(自身を除く): 27413080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 383, 766, 1423, 1532, 1915, 2846, 3064, 3830, 5692, 7115, 7660, 11384, 14230, 15320, 28460, 56920, 545009, 1090018, 2180036, 2725045, 4360072, 5450090, 10900180, 21800360]

約数ペア:

[(1, 21800360), (2, 10900180), (4, 5450090), (5, 4360072), (8, 2725045), (10, 2180036), (20, 1090018), (40, 545009), (383, 56920), (766, 28460), (1423, 15320), (1532, 14230), (1915, 11384), (2846, 7660), (3064, 7115), (3830, 5692)]