20768710

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{281}}^1\times {\mathrm{389}}^1$

素因数の和:696

約数の個数: 32

約数和(自身を含む): 39592800

約数和(自身を除く): 18824090

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 281, 389, 562, 778, 1405, 1945, 2810, 3890, 5339, 7391, 10678, 14782, 26695, 36955, 53390, 73910, 109309, 218618, 546545, 1093090, 2076871, 4153742, 10384355, 20768710]

約数ペア:

[(1, 20768710), (2, 10384355), (5, 4153742), (10, 2076871), (19, 1093090), (38, 546545), (95, 218618), (190, 109309), (281, 73910), (389, 53390), (562, 36955), (778, 26695), (1405, 14782), (1945, 10678), (2810, 7391), (3890, 5339)]