189280627775

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{173}}^1\times {\mathrm{1439}}^1\times {\mathrm{1789}}^1$

素因数の和:3428

約数の個数: 48

約数和(自身を含む): 250264339200

約数和(自身を除く): 60983711425

約数列:

[1, 5, 17, 25, 85, 173, 425, 865, 1439, 1789, 2941, 4325, 7195, 8945, 14705, 24463, 30413, 35975, 44725, 73525, 122315, 152065, 248947, 309497, 611575, 760325, 1244735, 1547485, 2574371, 4232099, 5261449, 6223675, 7737425, 12871855, 21160495, 26307245, 43764307, 64359275, 105802475, 131536225, 218821535, 445366183, 1094107675, 2226830915, 7571225111, 11134154575, 37856125555, 189280627775]

約数ペア:

[(1, 189280627775), (5, 37856125555), (17, 11134154575), (25, 7571225111), (85, 2226830915), (173, 1094107675), (425, 445366183), (865, 218821535), (1439, 131536225), (1789, 105802475), (2941, 64359275), (4325, 43764307), (7195, 26307245), (8945, 21160495), (14705, 12871855), (24463, 7737425), (30413, 6223675), (35975, 5261449), (44725, 4232099), (73525, 2574371), (122315, 1547485), (152065, 1244735), (248947, 760325), (309497, 611575)]