81338544

素因数分解:

$2^4\times 3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{137}}^1$

素因数の和:208

約数の個数: 240

約数和(自身を含む): 284743680

約数和(自身を除く): 203405136

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 19, 21, 24, 28, 31, 36, 38, 42, 48, 56, 57, 62, 63, 72, 76, 84, 93, 112, 114, 124, 126, 133, 137, 144, 152, 168, 171, 186, 217, 228, 248, 252, 266, 274, 279, 304, 336, 342, 372, 399, 411, 434, 456, 496, 504, 532, 548, 558, 589, 651, 684, 744, 798, 822, 868, 912, 959, 1008, 1064, 1096, 1116, 1178, 1197, 1233, 1302, 1368, 1488, 1596, 1644, 1736, 1767, 1918, 1953, 2128, 2192, 2232, 2356, 2394, 2466, 2603, 2604, 2736, 2877, 3192, 3288, 3472, 3534, 3836, 3906, 4123, 4247, 4464, 4712, 4788, 4932, 5206, 5208, 5301, 5754, 6384, 6576, 7068, 7672, 7809, 7812, 8246, 8494, 8631, 9424, 9576, 9864, 10412, 10416, 10602, 11508, 12369, 12741, 14136, 15344, 15618, 15624, 16492, 16988, 17262, 18221, 19152, 19728, 20824, 21204, 23016, 23427, 24738, 25482, 28272, 29729, 31236, 31248, 32984, 33976, 34524, 36442, 37107, 38223, 41648, 42408, 46032, 46854, 49476, 50964, 54663, 59458, 62472, 65968, 67952, 69048, 72884, 74214, 76446, 80693, 84816, 89187, 93708, 98952, 101928, 109326, 118916, 124944, 138096, 145768, 148428, 152892, 161386, 163989, 178374, 187416, 197904, 203856, 218652, 237832, 242079, 267561, 291536, 296856, 305784, 322772, 327978, 356748, 374832, 437304, 475664, 484158, 535122, 564851, 593712, 611568, 645544, 655956, 713496, 726237, 874608, 968316, 1070244, 1129702, 1291088, 1311912, 1426992, 1452474, 1694553, 1936632, 2140488, 2259404, 2623824, 2904948, 3389106, 3873264, 4280976, 4518808, 5083659, 5809896, 6778212, 9037616, 10167318, 11619792, 13556424, 20334636, 27112848, 40669272, 81338544]

約数ペア:

[(1, 81338544), (2, 40669272), (3, 27112848), (4, 20334636), (6, 13556424), (7, 11619792), (8, 10167318), (9, 9037616), (12, 6778212), (14, 5809896), (16, 5083659), (18, 4518808), (19, 4280976), (21, 3873264), (24, 3389106), (28, 2904948), (31, 2623824), (36, 2259404), (38, 2140488), (42, 1936632), (48, 1694553), (56, 1452474), (57, 1426992), (62, 1311912), (63, 1291088), (72, 1129702), (76, 1070244), (84, 968316), (93, 874608), (112, 726237), (114, 713496), (124, 655956), (126, 645544), (133, 611568), (137, 593712), (144, 564851), (152, 535122), (168, 484158), (171, 475664), (186, 437304), (217, 374832), (228, 356748), (248, 327978), (252, 322772), (266, 305784), (274, 296856), (279, 291536), (304, 267561), (336, 242079), (342, 237832), (372, 218652), (399, 203856), (411, 197904), (434, 187416), (456, 178374), (496, 163989), (504, 161386), (532, 152892), (548, 148428), (558, 145768), (589, 138096), (651, 124944), (684, 118916), (744, 109326), (798, 101928), (822, 98952), (868, 93708), (912, 89187), (959, 84816), (1008, 80693), (1064, 76446), (1096, 74214), (1116, 72884), (1178, 69048), (1197, 67952), (1233, 65968), (1302, 62472), (1368, 59458), (1488, 54663), (1596, 50964), (1644, 49476), (1736, 46854), (1767, 46032), (1918, 42408), (1953, 41648), (2128, 38223), (2192, 37107), (2232, 36442), (2356, 34524), (2394, 33976), (2466, 32984), (2603, 31248), (2604, 31236), (2736, 29729), (2877, 28272), (3192, 25482), (3288, 24738), (3472, 23427), (3534, 23016), (3836, 21204), (3906, 20824), (4123, 19728), (4247, 19152), (4464, 18221), (4712, 17262), (4788, 16988), (4932, 16492), (5206, 15624), (5208, 15618), (5301, 15344), (5754, 14136), (6384, 12741), (6576, 12369), (7068, 11508), (7672, 10602), (7809, 10416), (7812, 10412), (8246, 9864), (8494, 9576), (8631, 9424)]