20203970

素因数分解:

$2^1\times 5^1\times {\mathrm{457}}^1\times {\mathrm{4421}}^1$

素因数の和:4885

約数の個数: 16

約数和(自身を含む): 36454968

約数和(自身を除く): 16250998

約数列:

[1, 2, 5, 10, 457, 914, 2285, 4421, 4570, 8842, 22105, 44210, 2020397, 4040794, 10101985, 20203970]

約数ペア:

[(1, 20203970), (2, 10101985), (5, 4040794), (10, 2020397), (457, 44210), (914, 22105), (2285, 8842), (4421, 4570)]