261401904

素因数分解:

$2^4\times 3^6\times {\mathrm{73}}^1\times {\mathrm{307}}^1$

素因数の和:406

約数の個数: 140

約数和(自身を含む): 772261336

約数和(自身を除く): 510859432

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 36, 48, 54, 72, 73, 81, 108, 144, 146, 162, 216, 219, 243, 292, 307, 324, 432, 438, 486, 584, 614, 648, 657, 729, 876, 921, 972, 1168, 1228, 1296, 1314, 1458, 1752, 1842, 1944, 1971, 2456, 2628, 2763, 2916, 3504, 3684, 3888, 3942, 4912, 5256, 5526, 5832, 5913, 7368, 7884, 8289, 10512, 11052, 11664, 11826, 14736, 15768, 16578, 17739, 22104, 22411, 23652, 24867, 31536, 33156, 35478, 44208, 44822, 47304, 49734, 53217, 66312, 67233, 70956, 74601, 89644, 94608, 99468, 106434, 132624, 134466, 141912, 149202, 179288, 198936, 201699, 212868, 223803, 268932, 283824, 298404, 358576, 397872, 403398, 425736, 447606, 537864, 596808, 605097, 806796, 851472, 895212, 1075728, 1193616, 1210194, 1613592, 1790424, 1815291, 2420388, 3227184, 3580848, 3630582, 4840776, 5445873, 7261164, 9681552, 10891746, 14522328, 16337619, 21783492, 29044656, 32675238, 43566984, 65350476, 87133968, 130700952, 261401904]

約数ペア:

[(1, 261401904), (2, 130700952), (3, 87133968), (4, 65350476), (6, 43566984), (8, 32675238), (9, 29044656), (12, 21783492), (16, 16337619), (18, 14522328), (24, 10891746), (27, 9681552), (36, 7261164), (48, 5445873), (54, 4840776), (72, 3630582), (73, 3580848), (81, 3227184), (108, 2420388), (144, 1815291), (146, 1790424), (162, 1613592), (216, 1210194), (219, 1193616), (243, 1075728), (292, 895212), (307, 851472), (324, 806796), (432, 605097), (438, 596808), (486, 537864), (584, 447606), (614, 425736), (648, 403398), (657, 397872), (729, 358576), (876, 298404), (921, 283824), (972, 268932), (1168, 223803), (1228, 212868), (1296, 201699), (1314, 198936), (1458, 179288), (1752, 149202), (1842, 141912), (1944, 134466), (1971, 132624), (2456, 106434), (2628, 99468), (2763, 94608), (2916, 89644), (3504, 74601), (3684, 70956), (3888, 67233), (3942, 66312), (4912, 53217), (5256, 49734), (5526, 47304), (5832, 44822), (5913, 44208), (7368, 35478), (7884, 33156), (8289, 31536), (10512, 24867), (11052, 23652), (11664, 22411), (11826, 22104), (14736, 17739), (15768, 16578)]