20404733245

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{859}}^1\times {\mathrm{15889}}^1$

素因数の和:16789

約数の個数: 32

約数和(自身を含む): 27549446400

約数和(自身を除く): 7144713155

約数列:

[1, 5, 13, 23, 65, 115, 299, 859, 1495, 4295, 11167, 15889, 19757, 55835, 79445, 98785, 206557, 256841, 365447, 1032785, 1284205, 1827235, 4750811, 13648651, 23754055, 68243255, 177432463, 313918973, 887162315, 1569594865, 4080946649, 20404733245]

約数ペア:

[(1, 20404733245), (5, 4080946649), (13, 1569594865), (23, 887162315), (65, 313918973), (115, 177432463), (299, 68243255), (859, 23754055), (1495, 13648651), (4295, 4750811), (11167, 1827235), (15889, 1284205), (19757, 1032785), (55835, 365447), (79445, 256841), (98785, 206557)]