20656510

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{269}}^1\times {\mathrm{1097}}^1$

素因数の和:1380

約数の個数: 32

約数和(自身を含む): 42690240

約数和(自身を除く): 22033730

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 269, 538, 1097, 1345, 1883, 2194, 2690, 3766, 5485, 7679, 9415, 10970, 15358, 18830, 38395, 76790, 295093, 590186, 1475465, 2065651, 2950930, 4131302, 10328255, 20656510]

約数ペア:

[(1, 20656510), (2, 10328255), (5, 4131302), (7, 2950930), (10, 2065651), (14, 1475465), (35, 590186), (70, 295093), (269, 76790), (538, 38395), (1097, 18830), (1345, 15358), (1883, 10970), (2194, 9415), (2690, 7679), (3766, 5485)]