639460908

素因数分解:

$2^2\times 3^2\times {\mathrm{431}}^1\times {\mathrm{41213}}^1$

素因数の和:41654

約数の個数: 36

約数和(自身を含む): 1620204768

約数和(自身を除く): 980743860

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 431, 862, 1293, 1724, 2586, 3879, 5172, 7758, 15516, 41213, 82426, 123639, 164852, 247278, 370917, 494556, 741834, 1483668, 17762803, 35525606, 53288409, 71051212, 106576818, 159865227, 213153636, 319730454, 639460908]

約数ペア:

[(1, 639460908), (2, 319730454), (3, 213153636), (4, 159865227), (6, 106576818), (9, 71051212), (12, 53288409), (18, 35525606), (36, 17762803), (431, 1483668), (862, 741834), (1293, 494556), (1724, 370917), (2586, 247278), (3879, 164852), (5172, 123639), (7758, 82426), (15516, 41213)]