1278118910

素因数分解:

$2^1\times 5^1\times {\mathrm{449}}^1\times {\mathrm{284659}}^1$

素因数の和:285115

約数の個数: 16

約数和(自身を含む): 2305746000

約数和(自身を除く): 1027627090

約数列:

[1, 2, 5, 10, 449, 898, 2245, 4490, 284659, 569318, 1423295, 2846590, 127811891, 255623782, 639059455, 1278118910]

約数ペア:

[(1, 1278118910), (2, 639059455), (5, 255623782), (10, 127811891), (449, 2846590), (898, 1423295), (2245, 569318), (4490, 284659)]