18887560

素因数分解:

$2^3\times 5^1\times {\mathrm{472189}}^1$

素因数の和:472200

約数の個数: 16

約数和(自身を含む): 42497100

約数和(自身を除く): 23609540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 472189, 944378, 1888756, 2360945, 3777512, 4721890, 9443780, 18887560]

約数ペア:

[(1, 18887560), (2, 9443780), (4, 4721890), (5, 3777512), (8, 2360945), (10, 1888756), (20, 944378), (40, 472189)]