99019520890

素因数分解:

$2^1\times 5^1\times {\mathrm{991}}^1\times {\mathrm{9991879}}^1$

素因数の和:9992877

約数の個数: 16

約数和(自身を含む): 178415009280

約数和(自身を除く): 79395488390

約数列:

[1, 2, 5, 10, 991, 1982, 4955, 9910, 9991879, 19983758, 49959395, 99918790, 9901952089, 19803904178, 49509760445, 99019520890]

約数ペア:

[(1, 99019520890), (2, 49509760445), (5, 19803904178), (10, 9901952089), (991, 99918790), (1982, 49959395), (4955, 19983758), (9910, 9991879)]