420772

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{131}}^1$

素因数の和:219

約数の個数: 24

約数和(自身を含む): 820512

約数和(自身を除く): 399740

約数列:

[1, 2, 4, 11, 22, 44, 73, 131, 146, 262, 292, 524, 803, 1441, 1606, 2882, 3212, 5764, 9563, 19126, 38252, 105193, 210386, 420772]

約数ペア:

[(1, 420772), (2, 210386), (4, 105193), (11, 38252), (22, 19126), (44, 9563), (73, 5764), (131, 3212), (146, 2882), (262, 1606), (292, 1441), (524, 803)]