20703910

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{90017}}^1$

素因数の和:90047

約数の個数: 16

約数和(自身を含む): 38887776

約数和(自身を除く): 18183866

約数列:

[1, 2, 5, 10, 23, 46, 115, 230, 90017, 180034, 450085, 900170, 2070391, 4140782, 10351955, 20703910]

約数ペア:

[(1, 20703910), (2, 10351955), (5, 4140782), (10, 2070391), (23, 900170), (46, 450085), (115, 180034), (230, 90017)]