78728410

素因数分解:

$2^1\times 5^1\times {\mathrm{409}}^1\times {\mathrm{19249}}^1$

素因数の和:19665

約数の個数: 16

約数和(自身を含む): 142065000

約数和(自身を除く): 63336590

約数列:

[1, 2, 5, 10, 409, 818, 2045, 4090, 19249, 38498, 96245, 192490, 7872841, 15745682, 39364205, 78728410]

約数ペア:

[(1, 78728410), (2, 39364205), (5, 15745682), (10, 7872841), (409, 192490), (818, 96245), (2045, 38498), (4090, 19249)]