1999903024

素因数分解:

$2^4\times 7^1\times {\mathrm{197}}^1\times {\mathrm{90641}}^1$

素因数の和:90853

約数の個数: 40

約数和(自身を含む): 4450884768

約数和(自身を除く): 2450981744

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 197, 394, 788, 1379, 1576, 2758, 3152, 5516, 11032, 22064, 90641, 181282, 362564, 634487, 725128, 1268974, 1450256, 2537948, 5075896, 10151792, 17856277, 35712554, 71425108, 124993939, 142850216, 249987878, 285700432, 499975756, 999951512, 1999903024]

約数ペア:

[(1, 1999903024), (2, 999951512), (4, 499975756), (7, 285700432), (8, 249987878), (14, 142850216), (16, 124993939), (28, 71425108), (56, 35712554), (112, 17856277), (197, 10151792), (394, 5075896), (788, 2537948), (1379, 1450256), (1576, 1268974), (2758, 725128), (3152, 634487), (5516, 362564), (11032, 181282), (22064, 90641)]