20704310

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{71}}^1\times {\mathrm{241}}^1$

素因数の和:341

約数の個数: 48

約数和(自身を含む): 41713056

約数和(自身を除く): 21008746

約数列:

[1, 2, 5, 10, 11, 22, 55, 71, 110, 121, 142, 241, 242, 355, 482, 605, 710, 781, 1205, 1210, 1562, 2410, 2651, 3905, 5302, 7810, 8591, 13255, 17111, 17182, 26510, 29161, 34222, 42955, 58322, 85555, 85910, 145805, 171110, 188221, 291610, 376442, 941105, 1882210, 2070431, 4140862, 10352155, 20704310]

約数ペア:

[(1, 20704310), (2, 10352155), (5, 4140862), (10, 2070431), (11, 1882210), (22, 941105), (55, 376442), (71, 291610), (110, 188221), (121, 171110), (142, 145805), (241, 85910), (242, 85555), (355, 58322), (482, 42955), (605, 34222), (710, 29161), (781, 26510), (1205, 17182), (1210, 17111), (1562, 13255), (2410, 8591), (2651, 7810), (3905, 5302)]