28742120

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{65323}}^1$

素因数の和:65345

約数の個数: 32

約数和(自身を含む): 70549920

約数和(自身を除く): 41807800

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 65323, 130646, 261292, 326615, 522584, 653230, 718553, 1306460, 1437106, 2612920, 2874212, 3592765, 5748424, 7185530, 14371060, 28742120]

約数ペア:

[(1, 28742120), (2, 14371060), (4, 7185530), (5, 5748424), (8, 3592765), (10, 2874212), (11, 2612920), (20, 1437106), (22, 1306460), (40, 718553), (44, 653230), (55, 522584), (88, 326615), (110, 261292), (220, 130646), (440, 65323)]