257696574478

素因数分解:

$2^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{137}}^1\times {\mathrm{941}}^1\times {\mathrm{2011}}^1$

素因数の和:3169

約数の個数: 64

約数和(自身を含む): 451961773056

約数和(自身を除く): 194265198578

約数列:

[1, 2, 7, 14, 71, 137, 142, 274, 497, 941, 959, 994, 1882, 1918, 2011, 4022, 6587, 9727, 13174, 14077, 19454, 28154, 66811, 68089, 128917, 133622, 136178, 142781, 257834, 275507, 285562, 467677, 551014, 902419, 935354, 999467, 1804838, 1892351, 1928549, 1998934, 3784702, 3857098, 9153107, 13246457, 18306214, 19560997, 26492914, 39121994, 64071749, 128143498, 134356921, 136926979, 259252087, 268713842, 273853958, 518504174, 940498447, 1814764609, 1880996894, 3629529218, 18406898177, 36813796354, 128848287239, 257696574478]

約数ペア:

[(1, 257696574478), (2, 128848287239), (7, 36813796354), (14, 18406898177), (71, 3629529218), (137, 1880996894), (142, 1814764609), (274, 940498447), (497, 518504174), (941, 273853958), (959, 268713842), (994, 259252087), (1882, 136926979), (1918, 134356921), (2011, 128143498), (4022, 64071749), (6587, 39121994), (9727, 26492914), (13174, 19560997), (14077, 18306214), (19454, 13246457), (28154, 9153107), (66811, 3857098), (68089, 3784702), (128917, 1998934), (133622, 1928549), (136178, 1892351), (142781, 1804838), (257834, 999467), (275507, 935354), (285562, 902419), (467677, 551014)]