20408048415

素因数分解:

$3^4\times 5^1\times {\mathrm{1493}}^1\times {\mathrm{33751}}^1$

素因数の和:35261

約数の個数: 40

約数和(自身を含む): 36608904288

約数和(自身を除く): 16200855873

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 1493, 4479, 7465, 13437, 22395, 33751, 40311, 67185, 101253, 120933, 168755, 201555, 303759, 506265, 604665, 911277, 1518795, 2733831, 4556385, 13669155, 50390243, 151170729, 251951215, 453512187, 755853645, 1360536561, 2267560935, 4081609683, 6802682805, 20408048415]

約数ペア:

[(1, 20408048415), (3, 6802682805), (5, 4081609683), (9, 2267560935), (15, 1360536561), (27, 755853645), (45, 453512187), (81, 251951215), (135, 151170729), (405, 50390243), (1493, 13669155), (4479, 4556385), (7465, 2733831), (13437, 1518795), (22395, 911277), (33751, 604665), (40311, 506265), (67185, 303759), (101253, 201555), (120933, 168755)]