20408973610

素因数分解:

$2^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{18723829}}^1$

素因数の和:18723945

約数の個数: 16

約数和(自身を含む): 37073183400

約数和(自身を除く): 16664209790

約数列:

[1, 2, 5, 10, 109, 218, 545, 1090, 18723829, 37447658, 93619145, 187238290, 2040897361, 4081794722, 10204486805, 20408973610]

約数ペア:

[(1, 20408973610), (2, 10204486805), (5, 4081794722), (10, 2040897361), (109, 187238290), (218, 93619145), (545, 37447658), (1090, 18723829)]