20455495

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{197}}^1\times {\mathrm{1093}}^1$

素因数の和:1314

約数の個数: 16

約数和(自身を含む): 25993440

約数和(自身を除く): 5537945

約数列:

[1, 5, 19, 95, 197, 985, 1093, 3743, 5465, 18715, 20767, 103835, 215321, 1076605, 4091099, 20455495]

約数ペア:

[(1, 20455495), (5, 4091099), (19, 1076605), (95, 215321), (197, 103835), (985, 20767), (1093, 18715), (3743, 5465)]