19251580

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{8831}}^1$

素因数の和:8949

約数の個数: 24

約数和(自身を含む): 40803840

約数和(自身を除く): 21552260

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 8831, 17662, 35324, 44155, 88310, 176620, 962579, 1925158, 3850316, 4812895, 9625790, 19251580]

約数ペア:

[(1, 19251580), (2, 9625790), (4, 4812895), (5, 3850316), (10, 1925158), (20, 962579), (109, 176620), (218, 88310), (436, 44155), (545, 35324), (1090, 17662), (2180, 8831)]