28886440

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{65651}}^1$

素因数の和:65673

約数の個数: 32

約数和(自身を含む): 70904160

約数和(自身を除く): 42017720

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 65651, 131302, 262604, 328255, 525208, 656510, 722161, 1313020, 1444322, 2626040, 2888644, 3610805, 5777288, 7221610, 14443220, 28886440]

約数ペア:

[(1, 28886440), (2, 14443220), (4, 7221610), (5, 5777288), (8, 3610805), (10, 2888644), (11, 2626040), (20, 1444322), (22, 1313020), (40, 722161), (44, 656510), (55, 525208), (88, 328255), (110, 262604), (220, 131302), (440, 65651)]