79700720

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^2$

素因数の和:159

約数の個数: 120

約数和(自身を含む): 211580208

約数和(自身を除く): 131879488

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 41, 44, 47, 55, 80, 82, 88, 94, 110, 164, 176, 188, 205, 220, 235, 328, 376, 410, 440, 451, 470, 517, 656, 752, 820, 880, 902, 940, 1034, 1640, 1804, 1880, 1927, 2068, 2209, 2255, 2585, 3280, 3608, 3760, 3854, 4136, 4418, 4510, 5170, 7216, 7708, 8272, 8836, 9020, 9635, 10340, 11045, 15416, 17672, 18040, 19270, 20680, 21197, 22090, 24299, 30832, 35344, 36080, 38540, 41360, 42394, 44180, 48598, 77080, 84788, 88360, 90569, 97196, 105985, 121495, 154160, 169576, 176720, 181138, 194392, 211970, 242990, 339152, 362276, 388784, 423940, 452845, 485980, 724552, 847880, 905690, 971960, 996259, 1449104, 1695760, 1811380, 1943920, 1992518, 3622760, 3985036, 4981295, 7245520, 7970072, 9962590, 15940144, 19925180, 39850360, 79700720]

約数ペア:

[(1, 79700720), (2, 39850360), (4, 19925180), (5, 15940144), (8, 9962590), (10, 7970072), (11, 7245520), (16, 4981295), (20, 3985036), (22, 3622760), (40, 1992518), (41, 1943920), (44, 1811380), (47, 1695760), (55, 1449104), (80, 996259), (82, 971960), (88, 905690), (94, 847880), (110, 724552), (164, 485980), (176, 452845), (188, 423940), (205, 388784), (220, 362276), (235, 339152), (328, 242990), (376, 211970), (410, 194392), (440, 181138), (451, 176720), (470, 169576), (517, 154160), (656, 121495), (752, 105985), (820, 97196), (880, 90569), (902, 88360), (940, 84788), (1034, 77080), (1640, 48598), (1804, 44180), (1880, 42394), (1927, 41360), (2068, 38540), (2209, 36080), (2255, 35344), (2585, 30832), (3280, 24299), (3608, 22090), (3760, 21197), (3854, 20680), (4136, 19270), (4418, 18040), (4510, 17672), (5170, 15416), (7216, 11045), (7708, 10340), (8272, 9635), (8836, 9020)]