55455640

素因数分解:

$2^3\times 5^1\times {\mathrm{223}}^1\times {\mathrm{6217}}^1$

素因数の和:6451

約数の個数: 32

約数和(自身を含む): 125354880

約数和(自身を除く): 69899240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 223, 446, 892, 1115, 1784, 2230, 4460, 6217, 8920, 12434, 24868, 31085, 49736, 62170, 124340, 248680, 1386391, 2772782, 5545564, 6931955, 11091128, 13863910, 27727820, 55455640]

約数ペア:

[(1, 55455640), (2, 27727820), (4, 13863910), (5, 11091128), (8, 6931955), (10, 5545564), (20, 2772782), (40, 1386391), (223, 248680), (446, 124340), (892, 62170), (1115, 49736), (1784, 31085), (2230, 24868), (4460, 12434), (6217, 8920)]