2180380

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{2659}}^1$

素因数の和:2709

約数の個数: 24

約数和(自身を含む): 4692240

約数和(自身を除く): 2511860

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 2659, 5318, 10636, 13295, 26590, 53180, 109019, 218038, 436076, 545095, 1090190, 2180380]

約数ペア:

[(1, 2180380), (2, 1090190), (4, 545095), (5, 436076), (10, 218038), (20, 109019), (41, 53180), (82, 26590), (164, 13295), (205, 10636), (410, 5318), (820, 2659)]