256789008

素因数分解:

$2^4\times 3^3\times 7^3\times {\mathrm{1733}}^1$

素因数の和:1771

約数の個数: 160

約数和(自身を含む): 860064000

約数和(自身を除く): 603274992

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, 84, 98, 108, 112, 126, 144, 147, 168, 189, 196, 216, 252, 294, 336, 343, 378, 392, 432, 441, 504, 588, 686, 756, 784, 882, 1008, 1029, 1176, 1323, 1372, 1512, 1733, 1764, 2058, 2352, 2646, 2744, 3024, 3087, 3466, 3528, 4116, 5199, 5292, 5488, 6174, 6932, 7056, 8232, 9261, 10398, 10584, 12131, 12348, 13864, 15597, 16464, 18522, 20796, 21168, 24262, 24696, 27728, 31194, 36393, 37044, 41592, 46791, 48524, 49392, 62388, 72786, 74088, 83184, 84917, 93582, 97048, 109179, 124776, 145572, 148176, 169834, 187164, 194096, 218358, 249552, 254751, 291144, 327537, 339668, 374328, 436716, 509502, 582288, 594419, 655074, 679336, 748656, 764253, 873432, 1019004, 1188838, 1310148, 1358672, 1528506, 1746864, 1783257, 2038008, 2292759, 2377676, 2620296, 3057012, 3566514, 4076016, 4585518, 4755352, 5240592, 5349771, 6114024, 7133028, 9171036, 9510704, 10699542, 12228048, 14266056, 16049313, 18342072, 21399084, 28532112, 32098626, 36684144, 42798168, 64197252, 85596336, 128394504, 256789008]

約数ペア:

[(1, 256789008), (2, 128394504), (3, 85596336), (4, 64197252), (6, 42798168), (7, 36684144), (8, 32098626), (9, 28532112), (12, 21399084), (14, 18342072), (16, 16049313), (18, 14266056), (21, 12228048), (24, 10699542), (27, 9510704), (28, 9171036), (36, 7133028), (42, 6114024), (48, 5349771), (49, 5240592), (54, 4755352), (56, 4585518), (63, 4076016), (72, 3566514), (84, 3057012), (98, 2620296), (108, 2377676), (112, 2292759), (126, 2038008), (144, 1783257), (147, 1746864), (168, 1528506), (189, 1358672), (196, 1310148), (216, 1188838), (252, 1019004), (294, 873432), (336, 764253), (343, 748656), (378, 679336), (392, 655074), (432, 594419), (441, 582288), (504, 509502), (588, 436716), (686, 374328), (756, 339668), (784, 327537), (882, 291144), (1008, 254751), (1029, 249552), (1176, 218358), (1323, 194096), (1372, 187164), (1512, 169834), (1733, 148176), (1764, 145572), (2058, 124776), (2352, 109179), (2646, 97048), (2744, 93582), (3024, 84917), (3087, 83184), (3466, 74088), (3528, 72786), (4116, 62388), (5199, 49392), (5292, 48524), (5488, 46791), (6174, 41592), (6932, 37044), (7056, 36393), (8232, 31194), (9261, 27728), (10398, 24696), (10584, 24262), (12131, 21168), (12348, 20796), (13864, 18522), (15597, 16464)]