18219880820

素因数分解:

$2^2\times 5^1\times {\mathrm{107}}^1\times {\mathrm{643}}^1\times {\mathrm{13241}}^1$

素因数の和:14000

約数の個数: 48

約数和(自身を含む): 38682318528

約数和(自身を除く): 20462437708

約数列:

[1, 2, 4, 5, 10, 20, 107, 214, 428, 535, 643, 1070, 1286, 2140, 2572, 3215, 6430, 12860, 13241, 26482, 52964, 66205, 68801, 132410, 137602, 264820, 275204, 344005, 688010, 1376020, 1416787, 2833574, 5667148, 7083935, 8513963, 14167870, 17027926, 28335740, 34055852, 42569815, 85139630, 170279260, 910994041, 1821988082, 3643976164, 4554970205, 9109940410, 18219880820]

約数ペア:

[(1, 18219880820), (2, 9109940410), (4, 4554970205), (5, 3643976164), (10, 1821988082), (20, 910994041), (107, 170279260), (214, 85139630), (428, 42569815), (535, 34055852), (643, 28335740), (1070, 17027926), (1286, 14167870), (2140, 8513963), (2572, 7083935), (3215, 5667148), (6430, 2833574), (12860, 1416787), (13241, 1376020), (26482, 688010), (52964, 344005), (66205, 275204), (68801, 264820), (132410, 137602)]