28552040

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{64891}}^1$

素因数の和:64913

約数の個数: 32

約数和(自身を含む): 70083360

約数和(自身を除く): 41531320

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 64891, 129782, 259564, 324455, 519128, 648910, 713801, 1297820, 1427602, 2595640, 2855204, 3569005, 5710408, 7138010, 14276020, 28552040]

約数ペア:

[(1, 28552040), (2, 14276020), (4, 7138010), (5, 5710408), (8, 3569005), (10, 2855204), (11, 2595640), (20, 1427602), (22, 1297820), (40, 713801), (44, 648910), (55, 519128), (88, 324455), (110, 259564), (220, 129782), (440, 64891)]