20121206454

素因数分解:

$2^1\times 3^2\times {\mathrm{19}}^2\times {\mathrm{71}}^1\times {\mathrm{43613}}^1$

素因数の和:43730

約数の個数: 72

約数和(自身を含む): 46660350672

約数和(自身を除く): 26539144218

約数列:

[1, 2, 3, 6, 9, 18, 19, 38, 57, 71, 114, 142, 171, 213, 342, 361, 426, 639, 722, 1083, 1278, 1349, 2166, 2698, 3249, 4047, 6498, 8094, 12141, 24282, 25631, 43613, 51262, 76893, 87226, 130839, 153786, 230679, 261678, 392517, 461358, 785034, 828647, 1657294, 2485941, 3096523, 4971882, 6193046, 7457823, 9289569, 14915646, 15744293, 18579138, 27868707, 31488586, 47232879, 55737414, 58833937, 94465758, 117667874, 141698637, 176501811, 283397274, 353003622, 529505433, 1059010866, 1117844803, 2235689606, 3353534409, 6707068818, 10060603227, 20121206454]

約数ペア:

[(1, 20121206454), (2, 10060603227), (3, 6707068818), (6, 3353534409), (9, 2235689606), (18, 1117844803), (19, 1059010866), (38, 529505433), (57, 353003622), (71, 283397274), (114, 176501811), (142, 141698637), (171, 117667874), (213, 94465758), (342, 58833937), (361, 55737414), (426, 47232879), (639, 31488586), (722, 27868707), (1083, 18579138), (1278, 15744293), (1349, 14915646), (2166, 9289569), (2698, 7457823), (3249, 6193046), (4047, 4971882), (6498, 3096523), (8094, 2485941), (12141, 1657294), (24282, 828647), (25631, 785034), (43613, 461358), (51262, 392517), (76893, 261678), (87226, 230679), (130839, 153786)]