18527840

素因数分解:

$2^5\times 5^1\times {\mathrm{43}}^1\times {\mathrm{2693}}^1$

素因数の和:2751

約数の個数: 48

約数和(自身を含む): 44806608

約数和(自身を除く): 26278768

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 80, 86, 160, 172, 215, 344, 430, 688, 860, 1376, 1720, 2693, 3440, 5386, 6880, 10772, 13465, 21544, 26930, 43088, 53860, 86176, 107720, 115799, 215440, 231598, 430880, 463196, 578995, 926392, 1157990, 1852784, 2315980, 3705568, 4631960, 9263920, 18527840]

約数ペア:

[(1, 18527840), (2, 9263920), (4, 4631960), (5, 3705568), (8, 2315980), (10, 1852784), (16, 1157990), (20, 926392), (32, 578995), (40, 463196), (43, 430880), (80, 231598), (86, 215440), (160, 115799), (172, 107720), (215, 86176), (344, 53860), (430, 43088), (688, 26930), (860, 21544), (1376, 13465), (1720, 10772), (2693, 6880), (3440, 5386)]