78790400

素因数分解:

$2^8\times 5^2\times {\mathrm{13}}^1\times {\mathrm{947}}^1$

素因数の和:986

約数の個数: 108

約数和(自身を含む): 210241752

約数和(自身を除く): 131451352

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 50, 52, 64, 65, 80, 100, 104, 128, 130, 160, 200, 208, 256, 260, 320, 325, 400, 416, 520, 640, 650, 800, 832, 947, 1040, 1280, 1300, 1600, 1664, 1894, 2080, 2600, 3200, 3328, 3788, 4160, 4735, 5200, 6400, 7576, 8320, 9470, 10400, 12311, 15152, 16640, 18940, 20800, 23675, 24622, 30304, 37880, 41600, 47350, 49244, 60608, 61555, 75760, 83200, 94700, 98488, 121216, 123110, 151520, 189400, 196976, 242432, 246220, 303040, 307775, 378800, 393952, 492440, 606080, 615550, 757600, 787904, 984880, 1212160, 1231100, 1515200, 1575808, 1969760, 2462200, 3030400, 3151616, 3939520, 4924400, 6060800, 7879040, 9848800, 15758080, 19697600, 39395200, 78790400]

約数ペア:

[(1, 78790400), (2, 39395200), (4, 19697600), (5, 15758080), (8, 9848800), (10, 7879040), (13, 6060800), (16, 4924400), (20, 3939520), (25, 3151616), (26, 3030400), (32, 2462200), (40, 1969760), (50, 1575808), (52, 1515200), (64, 1231100), (65, 1212160), (80, 984880), (100, 787904), (104, 757600), (128, 615550), (130, 606080), (160, 492440), (200, 393952), (208, 378800), (256, 307775), (260, 303040), (320, 246220), (325, 242432), (400, 196976), (416, 189400), (520, 151520), (640, 123110), (650, 121216), (800, 98488), (832, 94700), (947, 83200), (1040, 75760), (1280, 61555), (1300, 60608), (1600, 49244), (1664, 47350), (1894, 41600), (2080, 37880), (2600, 30304), (3200, 24622), (3328, 23675), (3788, 20800), (4160, 18940), (4735, 16640), (5200, 15152), (6400, 12311), (7576, 10400), (8320, 9470)]