20538670

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{70823}}^1$

素因数の和:70859

約数の個数: 16

約数和(自身を含む): 38244960

約数和(自身を除く): 17706290

約数列:

[1, 2, 5, 10, 29, 58, 145, 290, 70823, 141646, 354115, 708230, 2053867, 4107734, 10269335, 20538670]

約数ペア:

[(1, 20538670), (2, 10269335), (5, 4107734), (10, 2053867), (29, 708230), (58, 354115), (145, 141646), (290, 70823)]