17920880

素因数分解:

$2^4\times 5^1\times {\mathrm{224011}}^1$

素因数の和:224024

約数の個数: 20

約数和(自身を含む): 41666232

約数和(自身を除く): 23745352

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 224011, 448022, 896044, 1120055, 1792088, 2240110, 3584176, 4480220, 8960440, 17920880]

約数ペア:

[(1, 17920880), (2, 8960440), (4, 4480220), (5, 3584176), (8, 2240110), (10, 1792088), (16, 1120055), (20, 896044), (40, 448022), (80, 224011)]