18903080

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{67511}}^1$

素因数の和:67529

約数の個数: 32

約数和(自身を含む): 48608640

約数和(自身を除く): 29705560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 67511, 135022, 270044, 337555, 472577, 540088, 675110, 945154, 1350220, 1890308, 2362885, 2700440, 3780616, 4725770, 9451540, 18903080]

約数ペア:

[(1, 18903080), (2, 9451540), (4, 4725770), (5, 3780616), (7, 2700440), (8, 2362885), (10, 1890308), (14, 1350220), (20, 945154), (28, 675110), (35, 540088), (40, 472577), (56, 337555), (70, 270044), (140, 135022), (280, 67511)]