20540585

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{251}}^1\times {\mathrm{1259}}^1$

素因数の和:1528

約数の個数: 16

約数和(自身を含む): 26671680

約数和(自身を除く): 6131095

約数列:

[1, 5, 13, 65, 251, 1255, 1259, 3263, 6295, 16315, 16367, 81835, 316009, 1580045, 4108117, 20540585]

約数ペア:

[(1, 20540585), (5, 4108117), (13, 1580045), (65, 316009), (251, 81835), (1255, 16367), (1259, 16315), (3263, 6295)]