686061680

素因数分解:

$2^4\times 5^1\times {\mathrm{53}}^1\times {\mathrm{161807}}^1$

素因数の和:161873

約数の個数: 40

約数和(自身を含む): 1625199552

約数和(自身を除く): 939137872

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 53, 80, 106, 212, 265, 424, 530, 848, 1060, 2120, 4240, 161807, 323614, 647228, 809035, 1294456, 1618070, 2588912, 3236140, 6472280, 8575771, 12944560, 17151542, 34303084, 42878855, 68606168, 85757710, 137212336, 171515420, 343030840, 686061680]

約数ペア:

[(1, 686061680), (2, 343030840), (4, 171515420), (5, 137212336), (8, 85757710), (10, 68606168), (16, 42878855), (20, 34303084), (40, 17151542), (53, 12944560), (80, 8575771), (106, 6472280), (212, 3236140), (265, 2588912), (424, 1618070), (530, 1294456), (848, 809035), (1060, 647228), (2120, 323614), (4240, 161807)]