19961874485

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1291}}^1\times {\mathrm{14251}}^1$

素因数の和:15585

約数の個数: 32

約数和(自身を含む): 28283265024

約数和(自身を除く): 8321390539

約数列:

[1, 5, 7, 31, 35, 155, 217, 1085, 1291, 6455, 9037, 14251, 40021, 45185, 71255, 99757, 200105, 280147, 441781, 498785, 1400735, 2208905, 3092467, 15462335, 18398041, 91990205, 128786287, 570339271, 643931435, 2851696355, 3992374897, 19961874485]

約数ペア:

[(1, 19961874485), (5, 3992374897), (7, 2851696355), (31, 643931435), (35, 570339271), (155, 128786287), (217, 91990205), (1085, 18398041), (1291, 15462335), (6455, 3092467), (9037, 2208905), (14251, 1400735), (40021, 498785), (45185, 441781), (71255, 280147), (99757, 200105)]