20120809040

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{47}}^2\times {\mathrm{2777}}^1$

素因数の和:2925

約数の個数: 120

約数和(自身を含む): 48980818152

約数和(自身を除く): 28860009112

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 47, 80, 82, 94, 164, 188, 205, 235, 328, 376, 410, 470, 656, 752, 820, 940, 1640, 1880, 1927, 2209, 2777, 3280, 3760, 3854, 4418, 5554, 7708, 8836, 9635, 11045, 11108, 13885, 15416, 17672, 19270, 22090, 22216, 27770, 30832, 35344, 38540, 44180, 44432, 55540, 77080, 88360, 90569, 111080, 113857, 130519, 154160, 176720, 181138, 222160, 227714, 261038, 362276, 452845, 455428, 522076, 569285, 652595, 724552, 905690, 910856, 1044152, 1138570, 1305190, 1449104, 1811380, 1821712, 2088304, 2277140, 2610380, 3622760, 4554280, 5220760, 5351279, 6134393, 7245520, 9108560, 10441520, 10702558, 12268786, 21405116, 24537572, 26756395, 30671965, 42810232, 49075144, 53512790, 61343930, 85620464, 98150288, 107025580, 122687860, 214051160, 245375720, 251510113, 428102320, 490751440, 503020226, 1006040452, 1257550565, 2012080904, 2515101130, 4024161808, 5030202260, 10060404520, 20120809040]

約数ペア:

[(1, 20120809040), (2, 10060404520), (4, 5030202260), (5, 4024161808), (8, 2515101130), (10, 2012080904), (16, 1257550565), (20, 1006040452), (40, 503020226), (41, 490751440), (47, 428102320), (80, 251510113), (82, 245375720), (94, 214051160), (164, 122687860), (188, 107025580), (205, 98150288), (235, 85620464), (328, 61343930), (376, 53512790), (410, 49075144), (470, 42810232), (656, 30671965), (752, 26756395), (820, 24537572), (940, 21405116), (1640, 12268786), (1880, 10702558), (1927, 10441520), (2209, 9108560), (2777, 7245520), (3280, 6134393), (3760, 5351279), (3854, 5220760), (4418, 4554280), (5554, 3622760), (7708, 2610380), (8836, 2277140), (9635, 2088304), (11045, 1821712), (11108, 1811380), (13885, 1449104), (15416, 1305190), (17672, 1138570), (19270, 1044152), (22090, 910856), (22216, 905690), (27770, 724552), (30832, 652595), (35344, 569285), (38540, 522076), (44180, 455428), (44432, 452845), (55540, 362276), (77080, 261038), (88360, 227714), (90569, 222160), (111080, 181138), (113857, 176720), (130519, 154160)]