667280

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{439}}^1$

素因数の和:471

約数の個数: 40

約数和(自身を含む): 1636800

約数和(自身を除く): 969520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 439, 760, 878, 1520, 1756, 2195, 3512, 4390, 7024, 8341, 8780, 16682, 17560, 33364, 35120, 41705, 66728, 83410, 133456, 166820, 333640, 667280]

約数ペア:

[(1, 667280), (2, 333640), (4, 166820), (5, 133456), (8, 83410), (10, 66728), (16, 41705), (19, 35120), (20, 33364), (38, 17560), (40, 16682), (76, 8780), (80, 8341), (95, 7024), (152, 4390), (190, 3512), (304, 2195), (380, 1756), (439, 1520), (760, 878)]