20208978895

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{233}}^1\times {\mathrm{79939}}^1$

素因数の和:80215

約数の個数: 32

約数和(自身を含む): 28732354560

約数和(自身を除く): 8523375665

約数列:

[1, 5, 7, 31, 35, 155, 217, 233, 1085, 1165, 1631, 7223, 8155, 36115, 50561, 79939, 252805, 399695, 559573, 2478109, 2797865, 12390545, 17346763, 18625787, 86733815, 93128935, 130380509, 577399397, 651902545, 2886996985, 4041795779, 20208978895]

約数ペア:

[(1, 20208978895), (5, 4041795779), (7, 2886996985), (31, 651902545), (35, 577399397), (155, 130380509), (217, 93128935), (233, 86733815), (1085, 18625787), (1165, 17346763), (1631, 12390545), (7223, 2797865), (8155, 2478109), (36115, 559573), (50561, 399695), (79939, 252805)]