127747840

素因数分解:

$2^8\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{211}}^1$

素因数の和:286

約数の個数: 144

約数和(自身を含む): 343195776

約数和(自身を除く): 215447936

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 43, 44, 55, 64, 80, 86, 88, 110, 128, 160, 172, 176, 211, 215, 220, 256, 320, 344, 352, 422, 430, 440, 473, 640, 688, 704, 844, 860, 880, 946, 1055, 1280, 1376, 1408, 1688, 1720, 1760, 1892, 2110, 2321, 2365, 2752, 2816, 3376, 3440, 3520, 3784, 4220, 4642, 4730, 5504, 6752, 6880, 7040, 7568, 8440, 9073, 9284, 9460, 11008, 11605, 13504, 13760, 14080, 15136, 16880, 18146, 18568, 18920, 23210, 27008, 27520, 30272, 33760, 36292, 37136, 37840, 45365, 46420, 54016, 55040, 60544, 67520, 72584, 74272, 75680, 90730, 92840, 99803, 121088, 135040, 145168, 148544, 151360, 181460, 185680, 199606, 270080, 290336, 297088, 302720, 362920, 371360, 399212, 499015, 580672, 594176, 605440, 725840, 742720, 798424, 998030, 1161344, 1451680, 1485440, 1596848, 1996060, 2322688, 2903360, 2970880, 3193696, 3992120, 5806720, 6387392, 7984240, 11613440, 12774784, 15968480, 25549568, 31936960, 63873920, 127747840]

約数ペア:

[(1, 127747840), (2, 63873920), (4, 31936960), (5, 25549568), (8, 15968480), (10, 12774784), (11, 11613440), (16, 7984240), (20, 6387392), (22, 5806720), (32, 3992120), (40, 3193696), (43, 2970880), (44, 2903360), (55, 2322688), (64, 1996060), (80, 1596848), (86, 1485440), (88, 1451680), (110, 1161344), (128, 998030), (160, 798424), (172, 742720), (176, 725840), (211, 605440), (215, 594176), (220, 580672), (256, 499015), (320, 399212), (344, 371360), (352, 362920), (422, 302720), (430, 297088), (440, 290336), (473, 270080), (640, 199606), (688, 185680), (704, 181460), (844, 151360), (860, 148544), (880, 145168), (946, 135040), (1055, 121088), (1280, 99803), (1376, 92840), (1408, 90730), (1688, 75680), (1720, 74272), (1760, 72584), (1892, 67520), (2110, 60544), (2321, 55040), (2365, 54016), (2752, 46420), (2816, 45365), (3376, 37840), (3440, 37136), (3520, 36292), (3784, 33760), (4220, 30272), (4642, 27520), (4730, 27008), (5504, 23210), (6752, 18920), (6880, 18568), (7040, 18146), (7568, 16880), (8440, 15136), (9073, 14080), (9284, 13760), (9460, 13504), (11008, 11605)]