12920980

素因数分解:

$2^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{5087}}^1$

素因数の和:5223

約数の個数: 24

約数和(自身を含む): 27353088

約数和(自身を除く): 14432108

約数列:

[1, 2, 4, 5, 10, 20, 127, 254, 508, 635, 1270, 2540, 5087, 10174, 20348, 25435, 50870, 101740, 646049, 1292098, 2584196, 3230245, 6460490, 12920980]

約数ペア:

[(1, 12920980), (2, 6460490), (4, 3230245), (5, 2584196), (10, 1292098), (20, 646049), (127, 101740), (254, 50870), (508, 25435), (635, 20348), (1270, 10174), (2540, 5087)]