81002768

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{1777}}^1$

素因数の和:1840

約数の個数: 80

約数和(自身を含む): 201070464

約数和(自身を除く): 120067696

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 37, 44, 56, 74, 77, 88, 112, 148, 154, 176, 259, 296, 308, 407, 518, 592, 616, 814, 1036, 1232, 1628, 1777, 2072, 2849, 3256, 3554, 4144, 5698, 6512, 7108, 11396, 12439, 14216, 19547, 22792, 24878, 28432, 39094, 45584, 49756, 65749, 78188, 99512, 131498, 136829, 156376, 199024, 262996, 273658, 312752, 460243, 525992, 547316, 723239, 920486, 1051984, 1094632, 1446478, 1840972, 2189264, 2892956, 3681944, 5062673, 5785912, 7363888, 10125346, 11571824, 20250692, 40501384, 81002768]

約数ペア:

[(1, 81002768), (2, 40501384), (4, 20250692), (7, 11571824), (8, 10125346), (11, 7363888), (14, 5785912), (16, 5062673), (22, 3681944), (28, 2892956), (37, 2189264), (44, 1840972), (56, 1446478), (74, 1094632), (77, 1051984), (88, 920486), (112, 723239), (148, 547316), (154, 525992), (176, 460243), (259, 312752), (296, 273658), (308, 262996), (407, 199024), (518, 156376), (592, 136829), (616, 131498), (814, 99512), (1036, 78188), (1232, 65749), (1628, 49756), (1777, 45584), (2072, 39094), (2849, 28432), (3256, 24878), (3554, 22792), (4144, 19547), (5698, 14216), (6512, 12439), (7108, 11396)]