81922880

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{419}}^1$

素因数の和:496

約数の個数: 112

約数和(自身を含む): 215066880

約数和(自身を除く): 133144000

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 47, 52, 64, 65, 80, 94, 104, 130, 160, 188, 208, 235, 260, 320, 376, 416, 419, 470, 520, 611, 752, 832, 838, 940, 1040, 1222, 1504, 1676, 1880, 2080, 2095, 2444, 3008, 3055, 3352, 3760, 4160, 4190, 4888, 5447, 6110, 6704, 7520, 8380, 9776, 10894, 12220, 13408, 15040, 16760, 19552, 19693, 21788, 24440, 26816, 27235, 33520, 39104, 39386, 43576, 48880, 54470, 67040, 78772, 87152, 97760, 98465, 108940, 134080, 157544, 174304, 195520, 196930, 217880, 256009, 315088, 348608, 393860, 435760, 512018, 630176, 787720, 871520, 1024036, 1260352, 1280045, 1575440, 1743040, 2048072, 2560090, 3150880, 4096144, 5120180, 6301760, 8192288, 10240360, 16384576, 20480720, 40961440, 81922880]

約数ペア:

[(1, 81922880), (2, 40961440), (4, 20480720), (5, 16384576), (8, 10240360), (10, 8192288), (13, 6301760), (16, 5120180), (20, 4096144), (26, 3150880), (32, 2560090), (40, 2048072), (47, 1743040), (52, 1575440), (64, 1280045), (65, 1260352), (80, 1024036), (94, 871520), (104, 787720), (130, 630176), (160, 512018), (188, 435760), (208, 393860), (235, 348608), (260, 315088), (320, 256009), (376, 217880), (416, 196930), (419, 195520), (470, 174304), (520, 157544), (611, 134080), (752, 108940), (832, 98465), (838, 97760), (940, 87152), (1040, 78772), (1222, 67040), (1504, 54470), (1676, 48880), (1880, 43576), (2080, 39386), (2095, 39104), (2444, 33520), (3008, 27235), (3055, 26816), (3352, 24440), (3760, 21788), (4160, 19693), (4190, 19552), (4888, 16760), (5447, 15040), (6110, 13408), (6704, 12220), (7520, 10894), (8380, 9776)]