8709760

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{439}}^1$

素因数の和:489

約数の個数: 64

約数和(自身を含む): 21542400

約数和(自身を除く): 12832640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 310, 320, 439, 496, 620, 640, 878, 992, 1240, 1756, 1984, 2195, 2480, 3512, 3968, 4390, 4960, 7024, 8780, 9920, 13609, 14048, 17560, 19840, 27218, 28096, 35120, 54436, 56192, 68045, 70240, 108872, 136090, 140480, 217744, 272180, 280960, 435488, 544360, 870976, 1088720, 1741952, 2177440, 4354880, 8709760]

約数ペア:

[(1, 8709760), (2, 4354880), (4, 2177440), (5, 1741952), (8, 1088720), (10, 870976), (16, 544360), (20, 435488), (31, 280960), (32, 272180), (40, 217744), (62, 140480), (64, 136090), (80, 108872), (124, 70240), (128, 68045), (155, 56192), (160, 54436), (248, 35120), (310, 28096), (320, 27218), (439, 19840), (496, 17560), (620, 14048), (640, 13609), (878, 9920), (992, 8780), (1240, 7024), (1756, 4960), (1984, 4390), (2195, 3968), (2480, 3512)]