28073840

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{8161}}^1$

素因数の和:8217

約数の個数: 40

約数和(自身を含む): 66797808

約数和(自身を除く): 38723968

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 8161, 16322, 32644, 40805, 65288, 81610, 130576, 163220, 326440, 350923, 652880, 701846, 1403692, 1754615, 2807384, 3509230, 5614768, 7018460, 14036920, 28073840]

約数ペア:

[(1, 28073840), (2, 14036920), (4, 7018460), (5, 5614768), (8, 3509230), (10, 2807384), (16, 1754615), (20, 1403692), (40, 701846), (43, 652880), (80, 350923), (86, 326440), (172, 163220), (215, 130576), (344, 81610), (430, 65288), (688, 40805), (860, 32644), (1720, 16322), (3440, 8161)]