20165488

素因数分解:

$2^4\times 7^1\times {\mathrm{401}}^1\times {\mathrm{449}}^1$

素因数の和:865

約数の個数: 40

約数和(自身を含む): 44863200

約数和(自身を除く): 24697712

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 401, 449, 802, 898, 1604, 1796, 2807, 3143, 3208, 3592, 5614, 6286, 6416, 7184, 11228, 12572, 22456, 25144, 44912, 50288, 180049, 360098, 720196, 1260343, 1440392, 2520686, 2880784, 5041372, 10082744, 20165488]

約数ペア:

[(1, 20165488), (2, 10082744), (4, 5041372), (7, 2880784), (8, 2520686), (14, 1440392), (16, 1260343), (28, 720196), (56, 360098), (112, 180049), (401, 50288), (449, 44912), (802, 25144), (898, 22456), (1604, 12572), (1796, 11228), (2807, 7184), (3143, 6416), (3208, 6286), (3592, 5614)]