20156987188

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{1291}}^1\times {\mathrm{4229}}^1$

素因数の和:5608

約数の個数: 48

約数和(自身を含む): 38562168960

約数和(自身を除く): 18405181772

約数列:

[1, 2, 4, 13, 26, 52, 71, 142, 284, 923, 1291, 1846, 2582, 3692, 4229, 5164, 8458, 16783, 16916, 33566, 54977, 67132, 91661, 109954, 183322, 219908, 300259, 366644, 600518, 1191593, 1201036, 2383186, 3903367, 4766372, 5459639, 7806734, 10919278, 15613468, 21838556, 70975307, 141950614, 283901228, 387634369, 775268738, 1550537476, 5039246797, 10078493594, 20156987188]

約数ペア:

[(1, 20156987188), (2, 10078493594), (4, 5039246797), (13, 1550537476), (26, 775268738), (52, 387634369), (71, 283901228), (142, 141950614), (284, 70975307), (923, 21838556), (1291, 15613468), (1846, 10919278), (2582, 7806734), (3692, 5459639), (4229, 4766372), (5164, 3903367), (8458, 2383186), (16783, 1201036), (16916, 1191593), (33566, 600518), (54977, 366644), (67132, 300259), (91661, 219908), (109954, 183322)]