28471160

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{16553}}^1$

素因数の和:16607

約数の個数: 32

約数和(自身を含む): 65553840

約数和(自身を除く): 37082680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 16553, 33106, 66212, 82765, 132424, 165530, 331060, 662120, 711779, 1423558, 2847116, 3558895, 5694232, 7117790, 14235580, 28471160]

約数ペア:

[(1, 28471160), (2, 14235580), (4, 7117790), (5, 5694232), (8, 3558895), (10, 2847116), (20, 1423558), (40, 711779), (43, 662120), (86, 331060), (172, 165530), (215, 132424), (344, 82765), (430, 66212), (860, 33106), (1720, 16553)]