20513470

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{89189}}^1$

素因数の和:89219

約数の個数: 16

約数和(自身を含む): 38530080

約数和(自身を除く): 18016610

約数列:

[1, 2, 5, 10, 23, 46, 115, 230, 89189, 178378, 445945, 891890, 2051347, 4102694, 10256735, 20513470]

約数ペア:

[(1, 20513470), (2, 10256735), (5, 4102694), (10, 2051347), (23, 891890), (46, 445945), (115, 178378), (230, 89189)]