28541680

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{8297}}^1$

素因数の和:8353

約数の個数: 40

約数和(自身を含む): 67910832

約数和(自身を除く): 39369152

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 8297, 16594, 33188, 41485, 66376, 82970, 132752, 165940, 331880, 356771, 663760, 713542, 1427084, 1783855, 2854168, 3567710, 5708336, 7135420, 14270840, 28541680]

約数ペア:

[(1, 28541680), (2, 14270840), (4, 7135420), (5, 5708336), (8, 3567710), (10, 2854168), (16, 1783855), (20, 1427084), (40, 713542), (43, 663760), (80, 356771), (86, 331880), (172, 165940), (215, 132752), (344, 82970), (430, 66376), (688, 41485), (860, 33188), (1720, 16594), (3440, 8297)]