19967030

素因数分解:

$2^1\times 5^1\times {\mathrm{449}}^1\times {\mathrm{4447}}^1$

素因数の和:4903

約数の個数: 16

約数和(自身を含む): 36028800

約数和(自身を除く): 16061770

約数列:

[1, 2, 5, 10, 449, 898, 2245, 4447, 4490, 8894, 22235, 44470, 1996703, 3993406, 9983515, 19967030]

約数ペア:

[(1, 19967030), (2, 9983515), (5, 3993406), (10, 1996703), (449, 44470), (898, 22235), (2245, 8894), (4447, 4490)]