20156450840

素因数分解:

$2^3\times 5^1\times {\mathrm{59}}^1\times {\mathrm{8540869}}^1$

素因数の和:8540939

約数の個数: 32

約数和(自身を含む): 46120698000

約数和(自身を除く): 25964247160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 59, 118, 236, 295, 472, 590, 1180, 2360, 8540869, 17081738, 34163476, 42704345, 68326952, 85408690, 170817380, 341634760, 503911271, 1007822542, 2015645084, 2519556355, 4031290168, 5039112710, 10078225420, 20156450840]

約数ペア:

[(1, 20156450840), (2, 10078225420), (4, 5039112710), (5, 4031290168), (8, 2519556355), (10, 2015645084), (20, 1007822542), (40, 503911271), (59, 341634760), (118, 170817380), (236, 85408690), (295, 68326952), (472, 42704345), (590, 34163476), (1180, 17081738), (2360, 8540869)]