90986980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{649907}}^1$

素因数の和:649923

約数の個数: 24

約数和(自身を含む): 218369088

約数和(自身を除く): 127382108

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 649907, 1299814, 2599628, 3249535, 4549349, 6499070, 9098698, 12998140, 18197396, 22746745, 45493490, 90986980]

約数ペア:

[(1, 90986980), (2, 45493490), (4, 22746745), (5, 18197396), (7, 12998140), (10, 9098698), (14, 6499070), (20, 4549349), (28, 3249535), (35, 2599628), (70, 1299814), (140, 649907)]