861555968

素因数分解:

$2^8\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1193}}^1$

素因数の和:1260

約数の個数: 144

約数和(自身を含む): 2186720256

約数和(自身を除く): 1325164288

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 31, 32, 52, 56, 62, 64, 91, 104, 112, 124, 128, 182, 208, 217, 224, 248, 256, 364, 403, 416, 434, 448, 496, 728, 806, 832, 868, 896, 992, 1193, 1456, 1612, 1664, 1736, 1792, 1984, 2386, 2821, 2912, 3224, 3328, 3472, 3968, 4772, 5642, 5824, 6448, 6944, 7936, 8351, 9544, 11284, 11648, 12896, 13888, 15509, 16702, 19088, 22568, 23296, 25792, 27776, 31018, 33404, 36983, 38176, 45136, 51584, 55552, 62036, 66808, 73966, 76352, 90272, 103168, 108563, 124072, 133616, 147932, 152704, 180544, 217126, 248144, 258881, 267232, 295864, 305408, 361088, 434252, 480779, 496288, 517762, 534464, 591728, 722176, 868504, 961558, 992576, 1035524, 1068928, 1183456, 1737008, 1923116, 1985152, 2071048, 2137856, 2366912, 3365453, 3474016, 3846232, 3970304, 4142096, 4733824, 6730906, 6948032, 7692464, 8284192, 9467648, 13461812, 13896064, 15384928, 16568384, 26923624, 27792128, 30769856, 33136768, 53847248, 61539712, 66273536, 107694496, 123079424, 215388992, 430777984, 861555968]

約数ペア:

[(1, 861555968), (2, 430777984), (4, 215388992), (7, 123079424), (8, 107694496), (13, 66273536), (14, 61539712), (16, 53847248), (26, 33136768), (28, 30769856), (31, 27792128), (32, 26923624), (52, 16568384), (56, 15384928), (62, 13896064), (64, 13461812), (91, 9467648), (104, 8284192), (112, 7692464), (124, 6948032), (128, 6730906), (182, 4733824), (208, 4142096), (217, 3970304), (224, 3846232), (248, 3474016), (256, 3365453), (364, 2366912), (403, 2137856), (416, 2071048), (434, 1985152), (448, 1923116), (496, 1737008), (728, 1183456), (806, 1068928), (832, 1035524), (868, 992576), (896, 961558), (992, 868504), (1193, 722176), (1456, 591728), (1612, 534464), (1664, 517762), (1736, 496288), (1792, 480779), (1984, 434252), (2386, 361088), (2821, 305408), (2912, 295864), (3224, 267232), (3328, 258881), (3472, 248144), (3968, 217126), (4772, 180544), (5642, 152704), (5824, 147932), (6448, 133616), (6944, 124072), (7936, 108563), (8351, 103168), (9544, 90272), (11284, 76352), (11648, 73966), (12896, 66808), (13888, 62036), (15509, 55552), (16702, 51584), (19088, 45136), (22568, 38176), (23296, 36983), (25792, 33404), (27776, 31018)]