20161299280

素因数分解:

$2^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{3190079}}^1$

素因数の和:3190171

約数の個数: 40

約数和(自身を含む): 47468390400

約数和(自身を除く): 27307091120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 79, 80, 158, 316, 395, 632, 790, 1264, 1580, 3160, 6320, 3190079, 6380158, 12760316, 15950395, 25520632, 31900790, 51041264, 63801580, 127603160, 252016241, 255206320, 504032482, 1008064964, 1260081205, 2016129928, 2520162410, 4032259856, 5040324820, 10080649640, 20161299280]

約数ペア:

[(1, 20161299280), (2, 10080649640), (4, 5040324820), (5, 4032259856), (8, 2520162410), (10, 2016129928), (16, 1260081205), (20, 1008064964), (40, 504032482), (79, 255206320), (80, 252016241), (158, 127603160), (316, 63801580), (395, 51041264), (632, 31900790), (790, 25520632), (1264, 15950395), (1580, 12760316), (3160, 6380158), (6320, 3190079)]