2145457985

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{499}}^1\times {\mathrm{78173}}^1$

素因数の和:78688

約数の個数: 16

約数和(自身を含む): 2814264000

約数和(自身を除く): 668806015

約数列:

[1, 5, 11, 55, 499, 2495, 5489, 27445, 78173, 390865, 859903, 4299515, 39008327, 195041635, 429091597, 2145457985]

約数ペア:

[(1, 2145457985), (5, 429091597), (11, 195041635), (55, 39008327), (499, 4299515), (2495, 859903), (5489, 390865), (27445, 78173)]