20450270

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{2909}}^1$

素因数の和:2972

約数の個数: 32

約数和(自身を含む): 39808800

約数和(自身を除く): 19358530

約数列:

[1, 2, 5, 10, 19, 37, 38, 74, 95, 185, 190, 370, 703, 1406, 2909, 3515, 5818, 7030, 14545, 29090, 55271, 107633, 110542, 215266, 276355, 538165, 552710, 1076330, 2045027, 4090054, 10225135, 20450270]

約数ペア:

[(1, 20450270), (2, 10225135), (5, 4090054), (10, 2045027), (19, 1076330), (37, 552710), (38, 538165), (74, 276355), (95, 215266), (185, 110542), (190, 107633), (370, 55271), (703, 29090), (1406, 14545), (2909, 7030), (3515, 5818)]