20209690

素因数分解:

$2^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{18541}}^1$

素因数の和:18657

約数の個数: 16

約数和(自身を含む): 36713160

約数和(自身を除く): 16503470

約数列:

[1, 2, 5, 10, 109, 218, 545, 1090, 18541, 37082, 92705, 185410, 2020969, 4041938, 10104845, 20209690]

約数ペア:

[(1, 20209690), (2, 10104845), (5, 4041938), (10, 2020969), (109, 185410), (218, 92705), (545, 37082), (1090, 18541)]