20188850

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^2\times {\mathrm{47}}^1\times {\mathrm{71}}^1$

素因数の和:152

約数の個数: 72

約数和(自身を含む): 42747264

約数和(自身を除く): 22558414

約数列:

[1, 2, 5, 10, 11, 22, 25, 47, 50, 55, 71, 94, 110, 121, 142, 235, 242, 275, 355, 470, 517, 550, 605, 710, 781, 1034, 1175, 1210, 1562, 1775, 2350, 2585, 3025, 3337, 3550, 3905, 5170, 5687, 6050, 6674, 7810, 8591, 11374, 12925, 16685, 17182, 19525, 25850, 28435, 33370, 36707, 39050, 42955, 56870, 73414, 83425, 85910, 142175, 166850, 183535, 214775, 284350, 367070, 403777, 429550, 807554, 917675, 1835350, 2018885, 4037770, 10094425, 20188850]

約数ペア:

[(1, 20188850), (2, 10094425), (5, 4037770), (10, 2018885), (11, 1835350), (22, 917675), (25, 807554), (47, 429550), (50, 403777), (55, 367070), (71, 284350), (94, 214775), (110, 183535), (121, 166850), (142, 142175), (235, 85910), (242, 83425), (275, 73414), (355, 56870), (470, 42955), (517, 39050), (550, 36707), (605, 33370), (710, 28435), (781, 25850), (1034, 19525), (1175, 17182), (1210, 16685), (1562, 12925), (1775, 11374), (2350, 8591), (2585, 7810), (3025, 6674), (3337, 6050), (3550, 5687), (3905, 5170)]