8147840

素因数分解:

$2^7\times 5^1\times {\mathrm{29}}^1\times {\mathrm{439}}^1$

素因数の和:487

約数の個数: 64

約数和(自身を含む): 20196000

約数和(自身を除く): 12048160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 32, 40, 58, 64, 80, 116, 128, 145, 160, 232, 290, 320, 439, 464, 580, 640, 878, 928, 1160, 1756, 1856, 2195, 2320, 3512, 3712, 4390, 4640, 7024, 8780, 9280, 12731, 14048, 17560, 18560, 25462, 28096, 35120, 50924, 56192, 63655, 70240, 101848, 127310, 140480, 203696, 254620, 280960, 407392, 509240, 814784, 1018480, 1629568, 2036960, 4073920, 8147840]

約数ペア:

[(1, 8147840), (2, 4073920), (4, 2036960), (5, 1629568), (8, 1018480), (10, 814784), (16, 509240), (20, 407392), (29, 280960), (32, 254620), (40, 203696), (58, 140480), (64, 127310), (80, 101848), (116, 70240), (128, 63655), (145, 56192), (160, 50924), (232, 35120), (290, 28096), (320, 25462), (439, 18560), (464, 17560), (580, 14048), (640, 12731), (878, 9280), (928, 8780), (1160, 7024), (1756, 4640), (1856, 4390), (2195, 3712), (2320, 3512)]