83966680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{299881}}^1$

素因数の和:299899

約数の個数: 32

約数和(自身を含む): 215915040

約数和(自身を除く): 131948360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 299881, 599762, 1199524, 1499405, 2099167, 2399048, 2998810, 4198334, 5997620, 8396668, 10495835, 11995240, 16793336, 20991670, 41983340, 83966680]

約数ペア:

[(1, 83966680), (2, 41983340), (4, 20991670), (5, 16793336), (7, 11995240), (8, 10495835), (10, 8396668), (14, 5997620), (20, 4198334), (28, 2998810), (35, 2399048), (40, 2099167), (56, 1499405), (70, 1199524), (140, 599762), (280, 299881)]