2720440

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{2957}}^1$

素因数の和:2991

約数の個数: 32

約数和(自身を含む): 6389280

約数和(自身を除く): 3668840

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 2957, 5914, 11828, 14785, 23656, 29570, 59140, 68011, 118280, 136022, 272044, 340055, 544088, 680110, 1360220, 2720440]

約数ペア:

[(1, 2720440), (2, 1360220), (4, 680110), (5, 544088), (8, 340055), (10, 272044), (20, 136022), (23, 118280), (40, 68011), (46, 59140), (92, 29570), (115, 23656), (184, 14785), (230, 11828), (460, 5914), (920, 2957)]