138638848

素因数分解:

$2^9\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{193}}^1$

素因数の和:295

約数の個数: 80

約数和(自身を含む): 295311456

約数和(自身を除く): 156672608

約数列:

[1, 2, 4, 8, 16, 23, 32, 46, 61, 64, 92, 122, 128, 184, 193, 244, 256, 368, 386, 488, 512, 736, 772, 976, 1403, 1472, 1544, 1952, 2806, 2944, 3088, 3904, 4439, 5612, 5888, 6176, 7808, 8878, 11224, 11773, 11776, 12352, 15616, 17756, 22448, 23546, 24704, 31232, 35512, 44896, 47092, 49408, 71024, 89792, 94184, 98816, 142048, 179584, 188368, 270779, 284096, 359168, 376736, 541558, 568192, 718336, 753472, 1083116, 1136384, 1506944, 2166232, 2272768, 3013888, 4332464, 6027776, 8664928, 17329856, 34659712, 69319424, 138638848]

約数ペア:

[(1, 138638848), (2, 69319424), (4, 34659712), (8, 17329856), (16, 8664928), (23, 6027776), (32, 4332464), (46, 3013888), (61, 2272768), (64, 2166232), (92, 1506944), (122, 1136384), (128, 1083116), (184, 753472), (193, 718336), (244, 568192), (256, 541558), (368, 376736), (386, 359168), (488, 284096), (512, 270779), (736, 188368), (772, 179584), (976, 142048), (1403, 98816), (1472, 94184), (1544, 89792), (1952, 71024), (2806, 49408), (2944, 47092), (3088, 44896), (3904, 35512), (4439, 31232), (5612, 24704), (5888, 23546), (6176, 22448), (7808, 17756), (8878, 15616), (11224, 12352), (11773, 11776)]