81197984

素因数分解:

$2^5\times 7^1\times {\mathrm{17}}^1\times {\mathrm{21323}}^1$

素因数の和:21357

約数の個数: 48

約数和(自身を含む): 193451328

約数和(自身を除く): 112253344

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 32, 34, 56, 68, 112, 119, 136, 224, 238, 272, 476, 544, 952, 1904, 3808, 21323, 42646, 85292, 149261, 170584, 298522, 341168, 362491, 597044, 682336, 724982, 1194088, 1449964, 2388176, 2537437, 2899928, 4776352, 5074874, 5799856, 10149748, 11599712, 20299496, 40598992, 81197984]

約数ペア:

[(1, 81197984), (2, 40598992), (4, 20299496), (7, 11599712), (8, 10149748), (14, 5799856), (16, 5074874), (17, 4776352), (28, 2899928), (32, 2537437), (34, 2388176), (56, 1449964), (68, 1194088), (112, 724982), (119, 682336), (136, 597044), (224, 362491), (238, 341168), (272, 298522), (476, 170584), (544, 149261), (952, 85292), (1904, 42646), (3808, 21323)]