13256120

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1\times {\mathrm{137}}^1$

素因数の和:248

約数の個数: 64

約数和(自身を含む): 31298400

約数和(自身を除く): 18042280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 59, 82, 118, 137, 164, 205, 236, 274, 295, 328, 410, 472, 548, 590, 685, 820, 1096, 1180, 1370, 1640, 2360, 2419, 2740, 4838, 5480, 5617, 8083, 9676, 11234, 12095, 16166, 19352, 22468, 24190, 28085, 32332, 40415, 44936, 48380, 56170, 64664, 80830, 96760, 112340, 161660, 224680, 323320, 331403, 662806, 1325612, 1657015, 2651224, 3314030, 6628060, 13256120]

約数ペア:

[(1, 13256120), (2, 6628060), (4, 3314030), (5, 2651224), (8, 1657015), (10, 1325612), (20, 662806), (40, 331403), (41, 323320), (59, 224680), (82, 161660), (118, 112340), (137, 96760), (164, 80830), (205, 64664), (236, 56170), (274, 48380), (295, 44936), (328, 40415), (410, 32332), (472, 28085), (548, 24190), (590, 22468), (685, 19352), (820, 16166), (1096, 12095), (1180, 11234), (1370, 9676), (1640, 8083), (2360, 5617), (2419, 5480), (2740, 4838)]