89881960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{321007}}^1$

素因数の和:321025

約数の個数: 32

約数和(自身を含む): 231125760

約数和(自身を除く): 141243800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 321007, 642014, 1284028, 1605035, 2247049, 2568056, 3210070, 4494098, 6420140, 8988196, 11235245, 12840280, 17976392, 22470490, 44940980, 89881960]

約数ペア:

[(1, 89881960), (2, 44940980), (4, 22470490), (5, 17976392), (7, 12840280), (8, 11235245), (10, 8988196), (14, 6420140), (20, 4494098), (28, 3210070), (35, 2568056), (40, 2247049), (56, 1605035), (70, 1284028), (140, 642014), (280, 321007)]