81651360

素因数分解:

$2^5\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{1279}}^1$

素因数の和:1323

約数の個数: 192

約数和(自身を含む): 309657600

約数和(自身を除く): 228006240

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 19, 20, 21, 24, 28, 30, 32, 35, 38, 40, 42, 48, 56, 57, 60, 70, 76, 80, 84, 95, 96, 105, 112, 114, 120, 133, 140, 152, 160, 168, 190, 210, 224, 228, 240, 266, 280, 285, 304, 336, 380, 399, 420, 456, 480, 532, 560, 570, 608, 665, 672, 760, 798, 840, 912, 1064, 1120, 1140, 1279, 1330, 1520, 1596, 1680, 1824, 1995, 2128, 2280, 2558, 2660, 3040, 3192, 3360, 3837, 3990, 4256, 4560, 5116, 5320, 6384, 6395, 7674, 7980, 8953, 9120, 10232, 10640, 12768, 12790, 15348, 15960, 17906, 19185, 20464, 21280, 24301, 25580, 26859, 30696, 31920, 35812, 38370, 40928, 44765, 48602, 51160, 53718, 61392, 63840, 71624, 72903, 76740, 89530, 97204, 102320, 107436, 121505, 122784, 134295, 143248, 145806, 153480, 170107, 179060, 194408, 204640, 214872, 243010, 268590, 286496, 291612, 306960, 340214, 358120, 364515, 388816, 429744, 486020, 510321, 537180, 583224, 613920, 680428, 716240, 729030, 777632, 850535, 859488, 972040, 1020642, 1074360, 1166448, 1360856, 1432480, 1458060, 1701070, 1944080, 2041284, 2148720, 2332896, 2551605, 2721712, 2916120, 3402140, 3888160, 4082568, 4297440, 5103210, 5443424, 5832240, 6804280, 8165136, 10206420, 11664480, 13608560, 16330272, 20412840, 27217120, 40825680, 81651360]

約数ペア:

[(1, 81651360), (2, 40825680), (3, 27217120), (4, 20412840), (5, 16330272), (6, 13608560), (7, 11664480), (8, 10206420), (10, 8165136), (12, 6804280), (14, 5832240), (15, 5443424), (16, 5103210), (19, 4297440), (20, 4082568), (21, 3888160), (24, 3402140), (28, 2916120), (30, 2721712), (32, 2551605), (35, 2332896), (38, 2148720), (40, 2041284), (42, 1944080), (48, 1701070), (56, 1458060), (57, 1432480), (60, 1360856), (70, 1166448), (76, 1074360), (80, 1020642), (84, 972040), (95, 859488), (96, 850535), (105, 777632), (112, 729030), (114, 716240), (120, 680428), (133, 613920), (140, 583224), (152, 537180), (160, 510321), (168, 486020), (190, 429744), (210, 388816), (224, 364515), (228, 358120), (240, 340214), (266, 306960), (280, 291612), (285, 286496), (304, 268590), (336, 243010), (380, 214872), (399, 204640), (420, 194408), (456, 179060), (480, 170107), (532, 153480), (560, 145806), (570, 143248), (608, 134295), (665, 122784), (672, 121505), (760, 107436), (798, 102320), (840, 97204), (912, 89530), (1064, 76740), (1120, 72903), (1140, 71624), (1279, 63840), (1330, 61392), (1520, 53718), (1596, 51160), (1680, 48602), (1824, 44765), (1995, 40928), (2128, 38370), (2280, 35812), (2558, 31920), (2660, 30696), (3040, 26859), (3192, 25580), (3360, 24301), (3837, 21280), (3990, 20464), (4256, 19185), (4560, 17906), (5116, 15960), (5320, 15348), (6384, 12790), (6395, 12768), (7674, 10640), (7980, 10232), (8953, 9120)]