78226720

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{263}}^1$

素因数の和:315

約数の個数: 144

約数和(自身を含む): 219143232

約数和(自身を除く): 140916512

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 26, 32, 40, 44, 52, 55, 65, 80, 88, 104, 110, 130, 143, 160, 169, 176, 208, 220, 260, 263, 286, 338, 352, 416, 440, 520, 526, 572, 676, 715, 845, 880, 1040, 1052, 1144, 1315, 1352, 1430, 1690, 1760, 1859, 2080, 2104, 2288, 2630, 2704, 2860, 2893, 3380, 3419, 3718, 4208, 4576, 5260, 5408, 5720, 5786, 6760, 6838, 7436, 8416, 9295, 10520, 11440, 11572, 13520, 13676, 14465, 14872, 17095, 18590, 21040, 22880, 23144, 27040, 27352, 28930, 29744, 34190, 37180, 37609, 42080, 44447, 46288, 54704, 57860, 59488, 68380, 74360, 75218, 88894, 92576, 109408, 115720, 136760, 148720, 150436, 177788, 188045, 222235, 231440, 273520, 297440, 300872, 355576, 376090, 444470, 462880, 488917, 547040, 601744, 711152, 752180, 888940, 977834, 1203488, 1422304, 1504360, 1777880, 1955668, 2444585, 3008720, 3555760, 3911336, 4889170, 6017440, 7111520, 7822672, 9778340, 15645344, 19556680, 39113360, 78226720]

約数ペア:

[(1, 78226720), (2, 39113360), (4, 19556680), (5, 15645344), (8, 9778340), (10, 7822672), (11, 7111520), (13, 6017440), (16, 4889170), (20, 3911336), (22, 3555760), (26, 3008720), (32, 2444585), (40, 1955668), (44, 1777880), (52, 1504360), (55, 1422304), (65, 1203488), (80, 977834), (88, 888940), (104, 752180), (110, 711152), (130, 601744), (143, 547040), (160, 488917), (169, 462880), (176, 444470), (208, 376090), (220, 355576), (260, 300872), (263, 297440), (286, 273520), (338, 231440), (352, 222235), (416, 188045), (440, 177788), (520, 150436), (526, 148720), (572, 136760), (676, 115720), (715, 109408), (845, 92576), (880, 88894), (1040, 75218), (1052, 74360), (1144, 68380), (1315, 59488), (1352, 57860), (1430, 54704), (1690, 46288), (1760, 44447), (1859, 42080), (2080, 37609), (2104, 37180), (2288, 34190), (2630, 29744), (2704, 28930), (2860, 27352), (2893, 27040), (3380, 23144), (3419, 22880), (3718, 21040), (4208, 18590), (4576, 17095), (5260, 14872), (5408, 14465), (5720, 13676), (5786, 13520), (6760, 11572), (6838, 11440), (7436, 10520), (8416, 9295)]