20453322880

素因数分解:

$2^7\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1879901}}^1$

素因数の和:1879937

約数の個数: 64

約数和(自身を含む): 51772501080

約数和(自身を除く): 31319178200

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 128, 136, 160, 170, 272, 320, 340, 544, 640, 680, 1088, 1360, 2176, 2720, 5440, 10880, 1879901, 3759802, 7519604, 9399505, 15039208, 18799010, 30078416, 31958317, 37598020, 60156832, 63916634, 75196040, 120313664, 127833268, 150392080, 159791585, 240627328, 255666536, 300784160, 319583170, 511333072, 601568320, 639166340, 1022666144, 1203136640, 1278332680, 2045332288, 2556665360, 4090664576, 5113330720, 10226661440, 20453322880]

約数ペア:

[(1, 20453322880), (2, 10226661440), (4, 5113330720), (5, 4090664576), (8, 2556665360), (10, 2045332288), (16, 1278332680), (17, 1203136640), (20, 1022666144), (32, 639166340), (34, 601568320), (40, 511333072), (64, 319583170), (68, 300784160), (80, 255666536), (85, 240627328), (128, 159791585), (136, 150392080), (160, 127833268), (170, 120313664), (272, 75196040), (320, 63916634), (340, 60156832), (544, 37598020), (640, 31958317), (680, 30078416), (1088, 18799010), (1360, 15039208), (2176, 9399505), (2720, 7519604), (5440, 3759802), (10880, 1879901)]