81451216

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{3889}}^1$

素因数の和:3932

約数の個数: 80

約数和(自身を含む): 208379520

約数和(自身を除く): 126928304

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 17, 22, 28, 34, 44, 56, 68, 77, 88, 112, 119, 136, 154, 176, 187, 238, 272, 308, 374, 476, 616, 748, 952, 1232, 1309, 1496, 1904, 2618, 2992, 3889, 5236, 7778, 10472, 15556, 20944, 27223, 31112, 42779, 54446, 62224, 66113, 85558, 108892, 132226, 171116, 217784, 264452, 299453, 342232, 435568, 462791, 528904, 598906, 684464, 727243, 925582, 1057808, 1197812, 1454486, 1851164, 2395624, 2908972, 3702328, 4791248, 5090701, 5817944, 7404656, 10181402, 11635888, 20362804, 40725608, 81451216]

約数ペア:

[(1, 81451216), (2, 40725608), (4, 20362804), (7, 11635888), (8, 10181402), (11, 7404656), (14, 5817944), (16, 5090701), (17, 4791248), (22, 3702328), (28, 2908972), (34, 2395624), (44, 1851164), (56, 1454486), (68, 1197812), (77, 1057808), (88, 925582), (112, 727243), (119, 684464), (136, 598906), (154, 528904), (176, 462791), (187, 435568), (238, 342232), (272, 299453), (308, 264452), (374, 217784), (476, 171116), (616, 132226), (748, 108892), (952, 85558), (1232, 66113), (1309, 62224), (1496, 54446), (1904, 42779), (2618, 31112), (2992, 27223), (3889, 20944), (5236, 15556), (7778, 10472)]