1389774448

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{1237}}^1$

素因数の和:1382

約数の個数: 80

約数和(自身を含む): 2917956096

約数和(自身を除く): 1528181648

約数列:

[1, 2, 4, 8, 16, 23, 43, 46, 71, 86, 92, 142, 172, 184, 284, 344, 368, 568, 688, 989, 1136, 1237, 1633, 1978, 2474, 3053, 3266, 3956, 4948, 6106, 6532, 7912, 9896, 12212, 13064, 15824, 19792, 24424, 26128, 28451, 48848, 53191, 56902, 70219, 87827, 106382, 113804, 140438, 175654, 212764, 227608, 280876, 351308, 425528, 455216, 561752, 702616, 851056, 1123504, 1223393, 1405232, 2020021, 2446786, 3776561, 4040042, 4893572, 7553122, 8080084, 9787144, 15106244, 16160168, 19574288, 30212488, 32320336, 60424976, 86860903, 173721806, 347443612, 694887224, 1389774448]

約数ペア:

[(1, 1389774448), (2, 694887224), (4, 347443612), (8, 173721806), (16, 86860903), (23, 60424976), (43, 32320336), (46, 30212488), (71, 19574288), (86, 16160168), (92, 15106244), (142, 9787144), (172, 8080084), (184, 7553122), (284, 4893572), (344, 4040042), (368, 3776561), (568, 2446786), (688, 2020021), (989, 1405232), (1136, 1223393), (1237, 1123504), (1633, 851056), (1978, 702616), (2474, 561752), (3053, 455216), (3266, 425528), (3956, 351308), (4948, 280876), (6106, 227608), (6532, 212764), (7912, 175654), (9896, 140438), (12212, 113804), (13064, 106382), (15824, 87827), (19792, 70219), (24424, 56902), (26128, 53191), (28451, 48848)]