127737520

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{523}}^1$

素因数の和:650

約数の個数: 80

約数和(自身を含む): 308765952

約数和(自身を除く): 181028432

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 71, 80, 86, 142, 172, 215, 284, 344, 355, 430, 523, 568, 688, 710, 860, 1046, 1136, 1420, 1720, 2092, 2615, 2840, 3053, 3440, 4184, 5230, 5680, 6106, 8368, 10460, 12212, 15265, 20920, 22489, 24424, 30530, 37133, 41840, 44978, 48848, 61060, 74266, 89956, 112445, 122120, 148532, 179912, 185665, 224890, 244240, 297064, 359824, 371330, 449780, 594128, 742660, 899560, 1485320, 1596719, 1799120, 2970640, 3193438, 6386876, 7983595, 12773752, 15967190, 25547504, 31934380, 63868760, 127737520]

約数ペア:

[(1, 127737520), (2, 63868760), (4, 31934380), (5, 25547504), (8, 15967190), (10, 12773752), (16, 7983595), (20, 6386876), (40, 3193438), (43, 2970640), (71, 1799120), (80, 1596719), (86, 1485320), (142, 899560), (172, 742660), (215, 594128), (284, 449780), (344, 371330), (355, 359824), (430, 297064), (523, 244240), (568, 224890), (688, 185665), (710, 179912), (860, 148532), (1046, 122120), (1136, 112445), (1420, 89956), (1720, 74266), (2092, 61060), (2615, 48848), (2840, 44978), (3053, 41840), (3440, 37133), (4184, 30530), (5230, 24424), (5680, 22489), (6106, 20920), (8368, 15265), (10460, 12212)]