20027820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{541}}^1\times {\mathrm{617}}^1$

素因数の和:1170

約数の個数: 48

約数和(自身を含む): 56272608

約数和(自身を除く): 36244788

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 541, 617, 1082, 1234, 1623, 1851, 2164, 2468, 2705, 3085, 3246, 3702, 5410, 6170, 6492, 7404, 8115, 9255, 10820, 12340, 16230, 18510, 32460, 37020, 333797, 667594, 1001391, 1335188, 1668985, 2002782, 3337970, 4005564, 5006955, 6675940, 10013910, 20027820]

約数ペア:

[(1, 20027820), (2, 10013910), (3, 6675940), (4, 5006955), (5, 4005564), (6, 3337970), (10, 2002782), (12, 1668985), (15, 1335188), (20, 1001391), (30, 667594), (60, 333797), (541, 37020), (617, 32460), (1082, 18510), (1234, 16230), (1623, 12340), (1851, 10820), (2164, 9255), (2468, 8115), (2705, 7404), (3085, 6492), (3246, 6170), (3702, 5410)]