20199721270

素因数分解:

$2^1\times 5^1\times {\mathrm{181}}^1\times {\mathrm{397}}^1\times {\mathrm{28111}}^1$

素因数の和:28696

約数の個数: 32

約数和(自身を含む): 36653774976

約数和(自身を除く): 16454053706

約数列:

[1, 2, 5, 10, 181, 362, 397, 794, 905, 1810, 1985, 3970, 28111, 56222, 71857, 140555, 143714, 281110, 359285, 718570, 5088091, 10176182, 11160067, 22320134, 25440455, 50880910, 55800335, 111600670, 2019972127, 4039944254, 10099860635, 20199721270]

約数ペア:

[(1, 20199721270), (2, 10099860635), (5, 4039944254), (10, 2019972127), (181, 111600670), (362, 55800335), (397, 50880910), (794, 25440455), (905, 22320134), (1810, 11160067), (1985, 10176182), (3970, 5088091), (28111, 718570), (56222, 359285), (71857, 281110), (140555, 143714)]