19802660

素因数分解:

$2^2\times 5^1\times {\mathrm{877}}^1\times {\mathrm{1129}}^1$

素因数の和:2015

約数の個数: 24

約数和(自身を含む): 41669880

約数和(自身を除く): 21867220

約数列:

[1, 2, 4, 5, 10, 20, 877, 1129, 1754, 2258, 3508, 4385, 4516, 5645, 8770, 11290, 17540, 22580, 990133, 1980266, 3960532, 4950665, 9901330, 19802660]

約数ペア:

[(1, 19802660), (2, 9901330), (4, 4950665), (5, 3960532), (10, 1980266), (20, 990133), (877, 22580), (1129, 17540), (1754, 11290), (2258, 8770), (3508, 5645), (4385, 4516)]