81126028

素因数分解:

$2^2\times {\mathrm{101}}^1\times {\mathrm{200807}}^1$

素因数の和:200912

約数の個数: 12

約数和(自身を含む): 143376912

約数和(自身を除く): 62250884

約数列:

[1, 2, 4, 101, 202, 404, 200807, 401614, 803228, 20281507, 40563014, 81126028]

約数ペア:

[(1, 81126028), (2, 40563014), (4, 20281507), (101, 803228), (202, 401614), (404, 200807)]