721849968

素因数分解:

$2^4\times 3^7\times 7^2\times {\mathrm{421}}^1$

素因数の和:464

約数の個数: 240

約数和(自身を含む): 2445810720

約数和(自身を除く): 1723960752

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 27, 28, 36, 42, 48, 49, 54, 56, 63, 72, 81, 84, 98, 108, 112, 126, 144, 147, 162, 168, 189, 196, 216, 243, 252, 294, 324, 336, 378, 392, 421, 432, 441, 486, 504, 567, 588, 648, 729, 756, 784, 842, 882, 972, 1008, 1134, 1176, 1263, 1296, 1323, 1458, 1512, 1684, 1701, 1764, 1944, 2187, 2268, 2352, 2526, 2646, 2916, 2947, 3024, 3368, 3402, 3528, 3789, 3888, 3969, 4374, 4536, 5052, 5103, 5292, 5832, 5894, 6736, 6804, 7056, 7578, 7938, 8748, 8841, 9072, 10104, 10206, 10584, 11367, 11664, 11788, 11907, 13608, 15156, 15309, 15876, 17496, 17682, 20208, 20412, 20629, 21168, 22734, 23576, 23814, 26523, 27216, 30312, 30618, 31752, 34101, 34992, 35364, 35721, 40824, 41258, 45468, 47152, 47628, 53046, 60624, 61236, 61887, 63504, 68202, 70728, 71442, 79569, 81648, 82516, 90936, 95256, 102303, 106092, 107163, 122472, 123774, 136404, 141456, 142884, 159138, 165032, 181872, 185661, 190512, 204606, 212184, 214326, 238707, 244944, 247548, 272808, 285768, 306909, 318276, 330064, 371322, 409212, 424368, 428652, 477414, 495096, 545616, 556983, 571536, 613818, 636552, 716121, 742644, 818424, 857304, 920727, 954828, 990192, 1113966, 1227636, 1273104, 1432242, 1485288, 1636848, 1670949, 1714608, 1841454, 1909656, 2148363, 2227932, 2455272, 2864484, 2970576, 3341898, 3682908, 3819312, 4296726, 4455864, 4910544, 5012847, 5728968, 6445089, 6683796, 7365816, 8593452, 8911728, 10025694, 11457936, 12890178, 13367592, 14731632, 15038541, 17186904, 20051388, 25780356, 26735184, 30077082, 34373808, 40102776, 45115623, 51560712, 60154164, 80205552, 90231246, 103121424, 120308328, 180462492, 240616656, 360924984, 721849968]

約数ペア:

[(1, 721849968), (2, 360924984), (3, 240616656), (4, 180462492), (6, 120308328), (7, 103121424), (8, 90231246), (9, 80205552), (12, 60154164), (14, 51560712), (16, 45115623), (18, 40102776), (21, 34373808), (24, 30077082), (27, 26735184), (28, 25780356), (36, 20051388), (42, 17186904), (48, 15038541), (49, 14731632), (54, 13367592), (56, 12890178), (63, 11457936), (72, 10025694), (81, 8911728), (84, 8593452), (98, 7365816), (108, 6683796), (112, 6445089), (126, 5728968), (144, 5012847), (147, 4910544), (162, 4455864), (168, 4296726), (189, 3819312), (196, 3682908), (216, 3341898), (243, 2970576), (252, 2864484), (294, 2455272), (324, 2227932), (336, 2148363), (378, 1909656), (392, 1841454), (421, 1714608), (432, 1670949), (441, 1636848), (486, 1485288), (504, 1432242), (567, 1273104), (588, 1227636), (648, 1113966), (729, 990192), (756, 954828), (784, 920727), (842, 857304), (882, 818424), (972, 742644), (1008, 716121), (1134, 636552), (1176, 613818), (1263, 571536), (1296, 556983), (1323, 545616), (1458, 495096), (1512, 477414), (1684, 428652), (1701, 424368), (1764, 409212), (1944, 371322), (2187, 330064), (2268, 318276), (2352, 306909), (2526, 285768), (2646, 272808), (2916, 247548), (2947, 244944), (3024, 238707), (3368, 214326), (3402, 212184), (3528, 204606), (3789, 190512), (3888, 185661), (3969, 181872), (4374, 165032), (4536, 159138), (5052, 142884), (5103, 141456), (5292, 136404), (5832, 123774), (5894, 122472), (6736, 107163), (6804, 106092), (7056, 102303), (7578, 95256), (7938, 90936), (8748, 82516), (8841, 81648), (9072, 79569), (10104, 71442), (10206, 70728), (10584, 68202), (11367, 63504), (11664, 61887), (11788, 61236), (11907, 60624), (13608, 53046), (15156, 47628), (15309, 47152), (15876, 45468), (17496, 41258), (17682, 40824), (20208, 35721), (20412, 35364), (20629, 34992), (21168, 34101), (22734, 31752), (23576, 30618), (23814, 30312), (26523, 27216)]