18609640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{66463}}^1$

素因数の和:66481

約数の個数: 32

約数和(自身を含む): 47854080

約数和(自身を除く): 29244440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 66463, 132926, 265852, 332315, 465241, 531704, 664630, 930482, 1329260, 1860964, 2326205, 2658520, 3721928, 4652410, 9304820, 18609640]

約数ペア:

[(1, 18609640), (2, 9304820), (4, 4652410), (5, 3721928), (7, 2658520), (8, 2326205), (10, 1860964), (14, 1329260), (20, 930482), (28, 664630), (35, 531704), (40, 465241), (56, 332315), (70, 265852), (140, 132926), (280, 66463)]