20104080368

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{20598443}}^1$

素因数の和:20598512

約数の個数: 20

約数和(自身を含む): 39590209368

約数和(自身を除く): 19486129000

約数列:

[1, 2, 4, 8, 16, 61, 122, 244, 488, 976, 20598443, 41196886, 82393772, 164787544, 329575088, 1256505023, 2513010046, 5026020092, 10052040184, 20104080368]

約数ペア:

[(1, 20104080368), (2, 10052040184), (4, 5026020092), (8, 2513010046), (16, 1256505023), (61, 329575088), (122, 164787544), (244, 82393772), (488, 41196886), (976, 20598443)]