81295340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{25247}}^1$

素因数の和:25286

約数の個数: 48

約数和(自身を含む): 203599872

約数和(自身を除く): 122304532

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 92, 115, 140, 161, 230, 322, 460, 644, 805, 1610, 3220, 25247, 50494, 100988, 126235, 176729, 252470, 353458, 504940, 580681, 706916, 883645, 1161362, 1767290, 2322724, 2903405, 3534580, 4064767, 5806810, 8129534, 11613620, 16259068, 20323835, 40647670, 81295340]

約数ペア:

[(1, 81295340), (2, 40647670), (4, 20323835), (5, 16259068), (7, 11613620), (10, 8129534), (14, 5806810), (20, 4064767), (23, 3534580), (28, 2903405), (35, 2322724), (46, 1767290), (70, 1161362), (92, 883645), (115, 706916), (140, 580681), (161, 504940), (230, 353458), (322, 252470), (460, 176729), (644, 126235), (805, 100988), (1610, 50494), (3220, 25247)]