42810940

素因数分解:

$2^2\times 5^1\times {\mathrm{643}}^1\times {\mathrm{3329}}^1$

素因数の和:3981

約数の個数: 24

約数和(自身を含む): 90069840

約数和(自身を除く): 47258900

約数列:

[1, 2, 4, 5, 10, 20, 643, 1286, 2572, 3215, 3329, 6430, 6658, 12860, 13316, 16645, 33290, 66580, 2140547, 4281094, 8562188, 10702735, 21405470, 42810940]

約数ペア:

[(1, 42810940), (2, 21405470), (4, 10702735), (5, 8562188), (10, 4281094), (20, 2140547), (643, 66580), (1286, 33290), (2572, 16645), (3215, 13316), (3329, 12860), (6430, 6658)]