1280821711

素因数分解:

${\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{269}}^1\times {\mathrm{521}}^1$

素因数の和:859

約数の個数: 32

約数和(自身を含む): 1499601600

約数和(自身を除く): 218779889

約数列:

[1, 13, 19, 37, 247, 269, 481, 521, 703, 3497, 5111, 6773, 9139, 9899, 9953, 19277, 66443, 128687, 129389, 140149, 189107, 250601, 366263, 1821937, 2458391, 2662831, 4761419, 5185513, 34616803, 67411669, 98524747, 1280821711]

約数ペア:

[(1, 1280821711), (13, 98524747), (19, 67411669), (37, 34616803), (247, 5185513), (269, 4761419), (481, 2662831), (521, 2458391), (703, 1821937), (3497, 366263), (5111, 250601), (6773, 189107), (9139, 140149), (9899, 129389), (9953, 128687), (19277, 66443)]