20280990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{787}}^1\times {\mathrm{859}}^1$

素因数の和:1656

約数の個数: 32

約数和(自身を含む): 48792960

約数和(自身を除く): 28511970

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 787, 859, 1574, 1718, 2361, 2577, 3935, 4295, 4722, 5154, 7870, 8590, 11805, 12885, 23610, 25770, 676033, 1352066, 2028099, 3380165, 4056198, 6760330, 10140495, 20280990]

約数ペア:

[(1, 20280990), (2, 10140495), (3, 6760330), (5, 4056198), (6, 3380165), (10, 2028099), (15, 1352066), (30, 676033), (787, 25770), (859, 23610), (1574, 12885), (1718, 11805), (2361, 8590), (2577, 7870), (3935, 5154), (4295, 4722)]