290320366

素因数分解:

$2^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{311}}^1\times {\mathrm{509}}^1$

素因数の和:960

約数の個数: 32

約数和(自身を含む): 504092160

約数和(自身を除く): 213771794

約数列:

[1, 2, 7, 14, 131, 262, 311, 509, 622, 917, 1018, 1834, 2177, 3563, 4354, 7126, 40741, 66679, 81482, 133358, 158299, 285187, 316598, 466753, 570374, 933506, 1108093, 2216186, 20737169, 41474338, 145160183, 290320366]

約数ペア:

[(1, 290320366), (2, 145160183), (7, 41474338), (14, 20737169), (131, 2216186), (262, 1108093), (311, 933506), (509, 570374), (622, 466753), (917, 316598), (1018, 285187), (1834, 158299), (2177, 133358), (3563, 81482), (4354, 66679), (7126, 40741)]