2981960

素因数分解:

$2^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{587}}^1$

素因数の和:725

約数の個数: 32

約数和(自身を含む): 6773760

約数和(自身を除く): 3791800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 127, 254, 508, 587, 635, 1016, 1174, 1270, 2348, 2540, 2935, 4696, 5080, 5870, 11740, 23480, 74549, 149098, 298196, 372745, 596392, 745490, 1490980, 2981960]

約数ペア:

[(1, 2981960), (2, 1490980), (4, 745490), (5, 596392), (8, 372745), (10, 298196), (20, 149098), (40, 74549), (127, 23480), (254, 11740), (508, 5870), (587, 5080), (635, 4696), (1016, 2935), (1174, 2540), (1270, 2348)]