127977280

素因数分解:

$2^6\times 5^1\times {\mathrm{439}}^1\times {\mathrm{911}}^1$

素因数の和:1367

約数の個数: 56

約数和(自身を含む): 305775360

約数和(自身を除く): 177798080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 439, 878, 911, 1756, 1822, 2195, 3512, 3644, 4390, 4555, 7024, 7288, 8780, 9110, 14048, 14576, 17560, 18220, 28096, 29152, 35120, 36440, 58304, 70240, 72880, 140480, 145760, 291520, 399929, 799858, 1599716, 1999645, 3199432, 3999290, 6398864, 7998580, 12797728, 15997160, 25595456, 31994320, 63988640, 127977280]

約数ペア:

[(1, 127977280), (2, 63988640), (4, 31994320), (5, 25595456), (8, 15997160), (10, 12797728), (16, 7998580), (20, 6398864), (32, 3999290), (40, 3199432), (64, 1999645), (80, 1599716), (160, 799858), (320, 399929), (439, 291520), (878, 145760), (911, 140480), (1756, 72880), (1822, 70240), (2195, 58304), (3512, 36440), (3644, 35120), (4390, 29152), (4555, 28096), (7024, 18220), (7288, 17560), (8780, 14576), (9110, 14048)]