261461520

素因数分解:

$2^4\times 3^4\times 5^1\times {\mathrm{157}}^1\times {\mathrm{257}}^1$

素因数の和:439

約数の個数: 200

約数和(自身を含む): 917434584

約数和(自身を除く): 655973064

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 81, 90, 108, 120, 135, 144, 157, 162, 180, 216, 240, 257, 270, 314, 324, 360, 405, 432, 471, 514, 540, 628, 648, 720, 771, 785, 810, 942, 1028, 1080, 1256, 1285, 1296, 1413, 1542, 1570, 1620, 1884, 2056, 2160, 2313, 2355, 2512, 2570, 2826, 3084, 3140, 3240, 3768, 3855, 4112, 4239, 4626, 4710, 5140, 5652, 6168, 6280, 6480, 6939, 7065, 7536, 7710, 8478, 9252, 9420, 10280, 11304, 11565, 12336, 12560, 12717, 13878, 14130, 15420, 16956, 18504, 18840, 20560, 20817, 21195, 22608, 23130, 25434, 27756, 28260, 30840, 33912, 34695, 37008, 37680, 40349, 41634, 42390, 46260, 50868, 55512, 56520, 61680, 63585, 67824, 69390, 80698, 83268, 84780, 92520, 101736, 104085, 111024, 113040, 121047, 127170, 138780, 161396, 166536, 169560, 185040, 201745, 203472, 208170, 242094, 254340, 277560, 322792, 333072, 339120, 363141, 403490, 416340, 484188, 508680, 555120, 605235, 645584, 726282, 806980, 832680, 968376, 1017360, 1089423, 1210470, 1452564, 1613960, 1665360, 1815705, 1936752, 2178846, 2420940, 2905128, 3227920, 3268269, 3631410, 4357692, 4841880, 5447115, 5810256, 6536538, 7262820, 8715384, 9683760, 10894230, 13073076, 14525640, 16341345, 17430768, 21788460, 26146152, 29051280, 32682690, 43576920, 52292304, 65365380, 87153840, 130730760, 261461520]

約数ペア:

[(1, 261461520), (2, 130730760), (3, 87153840), (4, 65365380), (5, 52292304), (6, 43576920), (8, 32682690), (9, 29051280), (10, 26146152), (12, 21788460), (15, 17430768), (16, 16341345), (18, 14525640), (20, 13073076), (24, 10894230), (27, 9683760), (30, 8715384), (36, 7262820), (40, 6536538), (45, 5810256), (48, 5447115), (54, 4841880), (60, 4357692), (72, 3631410), (80, 3268269), (81, 3227920), (90, 2905128), (108, 2420940), (120, 2178846), (135, 1936752), (144, 1815705), (157, 1665360), (162, 1613960), (180, 1452564), (216, 1210470), (240, 1089423), (257, 1017360), (270, 968376), (314, 832680), (324, 806980), (360, 726282), (405, 645584), (432, 605235), (471, 555120), (514, 508680), (540, 484188), (628, 416340), (648, 403490), (720, 363141), (771, 339120), (785, 333072), (810, 322792), (942, 277560), (1028, 254340), (1080, 242094), (1256, 208170), (1285, 203472), (1296, 201745), (1413, 185040), (1542, 169560), (1570, 166536), (1620, 161396), (1884, 138780), (2056, 127170), (2160, 121047), (2313, 113040), (2355, 111024), (2512, 104085), (2570, 101736), (2826, 92520), (3084, 84780), (3140, 83268), (3240, 80698), (3768, 69390), (3855, 67824), (4112, 63585), (4239, 61680), (4626, 56520), (4710, 55512), (5140, 50868), (5652, 46260), (6168, 42390), (6280, 41634), (6480, 40349), (6939, 37680), (7065, 37008), (7536, 34695), (7710, 33912), (8478, 30840), (9252, 28260), (9420, 27756), (10280, 25434), (11304, 23130), (11565, 22608), (12336, 21195), (12560, 20817), (12717, 20560), (13878, 18840), (14130, 18504), (15420, 16956)]