85220681

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{2143}}^1$

素因数の和:2205

約数の個数: 32

約数和(自身を含む): 115261440

約数和(自身を除く): 30040759

約数列:

[1, 7, 13, 19, 23, 91, 133, 161, 247, 299, 437, 1729, 2093, 2143, 3059, 5681, 15001, 27859, 39767, 40717, 49289, 195013, 285019, 345023, 529321, 640757, 936491, 3705247, 4485299, 6555437, 12174383, 85220681]

約数ペア:

[(1, 85220681), (7, 12174383), (13, 6555437), (19, 4485299), (23, 3705247), (91, 936491), (133, 640757), (161, 529321), (247, 345023), (299, 285019), (437, 195013), (1729, 49289), (2093, 40717), (2143, 39767), (3059, 27859), (5681, 15001)]