42857320

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{257}}^1\times {\mathrm{379}}^1$

素因数の和:658

約数の個数: 64

約数和(自身を含む): 105883200

約数和(自身を除く): 63025880

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 257, 379, 440, 514, 758, 1028, 1285, 1516, 1895, 2056, 2570, 2827, 3032, 3790, 4169, 5140, 5654, 7580, 8338, 10280, 11308, 14135, 15160, 16676, 20845, 22616, 28270, 33352, 41690, 56540, 83380, 97403, 113080, 166760, 194806, 389612, 487015, 779224, 974030, 1071433, 1948060, 2142866, 3896120, 4285732, 5357165, 8571464, 10714330, 21428660, 42857320]

約数ペア:

[(1, 42857320), (2, 21428660), (4, 10714330), (5, 8571464), (8, 5357165), (10, 4285732), (11, 3896120), (20, 2142866), (22, 1948060), (40, 1071433), (44, 974030), (55, 779224), (88, 487015), (110, 389612), (220, 194806), (257, 166760), (379, 113080), (440, 97403), (514, 83380), (758, 56540), (1028, 41690), (1285, 33352), (1516, 28270), (1895, 22616), (2056, 20845), (2570, 16676), (2827, 15160), (3032, 14135), (3790, 11308), (4169, 10280), (5140, 8338), (5654, 7580)]