18468880

素因数分解:

$2^4\times 5^1\times {\mathrm{230861}}^1$

素因数の和:230874

約数の個数: 20

約数和(自身を含む): 42940332

約数和(自身を除く): 24471452

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 230861, 461722, 923444, 1154305, 1846888, 2308610, 3693776, 4617220, 9234440, 18468880]

約数ペア:

[(1, 18468880), (2, 9234440), (4, 4617220), (5, 3693776), (8, 2308610), (10, 1846888), (16, 1154305), (20, 923444), (40, 461722), (80, 230861)]