66990980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{10181}}^1$

素因数の和:10244

約数の個数: 48

約数和(自身を含む): 164215296

約数和(自身を除く): 97224316

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 47, 70, 94, 140, 188, 235, 329, 470, 658, 940, 1316, 1645, 3290, 6580, 10181, 20362, 40724, 50905, 71267, 101810, 142534, 203620, 285068, 356335, 478507, 712670, 957014, 1425340, 1914028, 2392535, 3349549, 4785070, 6699098, 9570140, 13398196, 16747745, 33495490, 66990980]

約数ペア:

[(1, 66990980), (2, 33495490), (4, 16747745), (5, 13398196), (7, 9570140), (10, 6699098), (14, 4785070), (20, 3349549), (28, 2392535), (35, 1914028), (47, 1425340), (70, 957014), (94, 712670), (140, 478507), (188, 356335), (235, 285068), (329, 203620), (470, 142534), (658, 101810), (940, 71267), (1316, 50905), (1645, 40724), (3290, 20362), (6580, 10181)]