17759860

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{107}}^1\times {\mathrm{193}}^1$

素因数の和:352

約数の個数: 48

約数和(自身を含む): 38719296

約数和(自身を除く): 20959436

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 107, 172, 193, 214, 215, 386, 428, 430, 535, 772, 860, 965, 1070, 1930, 2140, 3860, 4601, 8299, 9202, 16598, 18404, 20651, 23005, 33196, 41302, 41495, 46010, 82604, 82990, 92020, 103255, 165980, 206510, 413020, 887993, 1775986, 3551972, 4439965, 8879930, 17759860]

約数ペア:

[(1, 17759860), (2, 8879930), (4, 4439965), (5, 3551972), (10, 1775986), (20, 887993), (43, 413020), (86, 206510), (107, 165980), (172, 103255), (193, 92020), (214, 82990), (215, 82604), (386, 46010), (428, 41495), (430, 41302), (535, 33196), (772, 23005), (860, 20651), (965, 18404), (1070, 16598), (1930, 9202), (2140, 8299), (3860, 4601)]