20449570

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{49877}}^1$

素因数の和:49925

約数の個数: 16

約数和(自身を含む): 37707768

約数和(自身を除く): 17258198

約数列:

[1, 2, 5, 10, 41, 82, 205, 410, 49877, 99754, 249385, 498770, 2044957, 4089914, 10224785, 20449570]

約数ペア:

[(1, 20449570), (2, 10224785), (5, 4089914), (10, 2044957), (41, 498770), (82, 249385), (205, 99754), (410, 49877)]