78947280

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{199}}^1$

素因数の和:266

約数の個数: 240

約数和(自身を含む): 290160000

約数和(自身を除く): 211212720

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 29, 30, 36, 38, 40, 45, 48, 57, 58, 60, 72, 76, 80, 87, 90, 95, 114, 116, 120, 144, 145, 152, 171, 174, 180, 190, 199, 228, 232, 240, 261, 285, 290, 304, 342, 348, 360, 380, 398, 435, 456, 464, 522, 551, 570, 580, 597, 684, 696, 720, 760, 796, 855, 870, 912, 995, 1044, 1102, 1140, 1160, 1194, 1305, 1368, 1392, 1520, 1592, 1653, 1710, 1740, 1791, 1990, 2088, 2204, 2280, 2320, 2388, 2610, 2736, 2755, 2985, 3184, 3306, 3420, 3480, 3582, 3781, 3980, 4176, 4408, 4560, 4776, 4959, 5220, 5510, 5771, 5970, 6612, 6840, 6960, 7164, 7562, 7960, 8265, 8816, 8955, 9552, 9918, 10440, 11020, 11343, 11542, 11940, 13224, 13680, 14328, 15124, 15920, 16530, 17313, 17910, 18905, 19836, 20880, 22040, 22686, 23084, 23880, 24795, 26448, 28656, 28855, 30248, 33060, 34029, 34626, 35820, 37810, 39672, 44080, 45372, 46168, 47760, 49590, 51939, 56715, 57710, 60496, 66120, 68058, 69252, 71640, 75620, 79344, 86565, 90744, 92336, 99180, 103878, 109649, 113430, 115420, 132240, 136116, 138504, 143280, 151240, 170145, 173130, 181488, 198360, 207756, 219298, 226860, 230840, 259695, 272232, 277008, 302480, 328947, 340290, 346260, 396720, 415512, 438596, 453720, 461680, 519390, 544464, 548245, 657894, 680580, 692520, 831024, 877192, 907440, 986841, 1038780, 1096490, 1315788, 1361160, 1385040, 1644735, 1754384, 1973682, 2077560, 2192980, 2631576, 2722320, 3289470, 3947364, 4155120, 4385960, 4934205, 5263152, 6578940, 7894728, 8771920, 9868410, 13157880, 15789456, 19736820, 26315760, 39473640, 78947280]

約数ペア:

[(1, 78947280), (2, 39473640), (3, 26315760), (4, 19736820), (5, 15789456), (6, 13157880), (8, 9868410), (9, 8771920), (10, 7894728), (12, 6578940), (15, 5263152), (16, 4934205), (18, 4385960), (19, 4155120), (20, 3947364), (24, 3289470), (29, 2722320), (30, 2631576), (36, 2192980), (38, 2077560), (40, 1973682), (45, 1754384), (48, 1644735), (57, 1385040), (58, 1361160), (60, 1315788), (72, 1096490), (76, 1038780), (80, 986841), (87, 907440), (90, 877192), (95, 831024), (114, 692520), (116, 680580), (120, 657894), (144, 548245), (145, 544464), (152, 519390), (171, 461680), (174, 453720), (180, 438596), (190, 415512), (199, 396720), (228, 346260), (232, 340290), (240, 328947), (261, 302480), (285, 277008), (290, 272232), (304, 259695), (342, 230840), (348, 226860), (360, 219298), (380, 207756), (398, 198360), (435, 181488), (456, 173130), (464, 170145), (522, 151240), (551, 143280), (570, 138504), (580, 136116), (597, 132240), (684, 115420), (696, 113430), (720, 109649), (760, 103878), (796, 99180), (855, 92336), (870, 90744), (912, 86565), (995, 79344), (1044, 75620), (1102, 71640), (1140, 69252), (1160, 68058), (1194, 66120), (1305, 60496), (1368, 57710), (1392, 56715), (1520, 51939), (1592, 49590), (1653, 47760), (1710, 46168), (1740, 45372), (1791, 44080), (1990, 39672), (2088, 37810), (2204, 35820), (2280, 34626), (2320, 34029), (2388, 33060), (2610, 30248), (2736, 28855), (2755, 28656), (2985, 26448), (3184, 24795), (3306, 23880), (3420, 23084), (3480, 22686), (3582, 22040), (3781, 20880), (3980, 19836), (4176, 18905), (4408, 17910), (4560, 17313), (4776, 16530), (4959, 15920), (5220, 15124), (5510, 14328), (5771, 13680), (5970, 13224), (6612, 11940), (6840, 11542), (6960, 11343), (7164, 11020), (7562, 10440), (7960, 9918), (8265, 9552), (8816, 8955)]