28446080

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^2\times {\mathrm{263}}^1$

素因数の和:308

約数の個数: 96

約数和(自身を含む): 73917360

約数和(自身を除く): 45471280

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 169, 208, 260, 263, 320, 338, 416, 520, 526, 640, 676, 832, 845, 1040, 1052, 1315, 1352, 1664, 1690, 2080, 2104, 2630, 2704, 3380, 3419, 4160, 4208, 5260, 5408, 6760, 6838, 8320, 8416, 10520, 10816, 13520, 13676, 16832, 17095, 21040, 21632, 27040, 27352, 33664, 34190, 42080, 44447, 54080, 54704, 68380, 84160, 88894, 108160, 109408, 136760, 168320, 177788, 218816, 222235, 273520, 355576, 437632, 444470, 547040, 711152, 888940, 1094080, 1422304, 1777880, 2188160, 2844608, 3555760, 5689216, 7111520, 14223040, 28446080]

約数ペア:

[(1, 28446080), (2, 14223040), (4, 7111520), (5, 5689216), (8, 3555760), (10, 2844608), (13, 2188160), (16, 1777880), (20, 1422304), (26, 1094080), (32, 888940), (40, 711152), (52, 547040), (64, 444470), (65, 437632), (80, 355576), (104, 273520), (128, 222235), (130, 218816), (160, 177788), (169, 168320), (208, 136760), (260, 109408), (263, 108160), (320, 88894), (338, 84160), (416, 68380), (520, 54704), (526, 54080), (640, 44447), (676, 42080), (832, 34190), (845, 33664), (1040, 27352), (1052, 27040), (1315, 21632), (1352, 21040), (1664, 17095), (1690, 16832), (2080, 13676), (2104, 13520), (2630, 10816), (2704, 10520), (3380, 8416), (3419, 8320), (4160, 6838), (4208, 6760), (5260, 5408)]