279479996575

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{137}}^1\times {\mathrm{149}}^1\times {\mathrm{409}}^1$

素因数の和:821

約数の個数: 96

約数和(自身を含む): 383069232000

約数和(自身を除く): 103589235425

約数列:

[1, 5, 13, 25, 65, 103, 137, 149, 325, 409, 515, 685, 745, 1339, 1781, 1937, 2045, 2575, 3425, 3725, 5317, 6695, 8905, 9685, 10225, 14111, 15347, 20413, 26585, 33475, 42127, 44525, 48425, 56033, 60941, 70555, 76735, 102065, 132925, 183443, 199511, 210635, 265369, 280165, 304705, 352775, 383675, 510325, 547651, 728429, 792233, 917215, 997555, 1053175, 1326845, 1400825, 1523525, 2102539, 2738255, 3642145, 3961165, 4586075, 4987775, 5771399, 6276923, 6634225, 8348917, 10512695, 13691275, 18210725, 19805825, 27333007, 28856995, 31384615, 41744585, 52563475, 75028187, 81599999, 108535921, 136665035, 144284975, 156923075, 208722925, 375140935, 407999995, 542679605, 683325175, 859938451, 1875704675, 2039999975, 2713398025, 4299692255, 11179199863, 21498461275, 55895999315, 279479996575]

約数ペア:

[(1, 279479996575), (5, 55895999315), (13, 21498461275), (25, 11179199863), (65, 4299692255), (103, 2713398025), (137, 2039999975), (149, 1875704675), (325, 859938451), (409, 683325175), (515, 542679605), (685, 407999995), (745, 375140935), (1339, 208722925), (1781, 156923075), (1937, 144284975), (2045, 136665035), (2575, 108535921), (3425, 81599999), (3725, 75028187), (5317, 52563475), (6695, 41744585), (8905, 31384615), (9685, 28856995), (10225, 27333007), (14111, 19805825), (15347, 18210725), (20413, 13691275), (26585, 10512695), (33475, 8348917), (42127, 6634225), (44525, 6276923), (48425, 5771399), (56033, 4987775), (60941, 4586075), (70555, 3961165), (76735, 3642145), (102065, 2738255), (132925, 2102539), (183443, 1523525), (199511, 1400825), (210635, 1326845), (265369, 1053175), (280165, 997555), (304705, 917215), (352775, 792233), (383675, 728429), (510325, 547651)]