1625585

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{281}}^1$

素因数の和:388

約数の個数: 16

約数和(自身を含む): 2131920

約数和(自身を除く): 506335

約数列:

[1, 5, 13, 65, 89, 281, 445, 1157, 1405, 3653, 5785, 18265, 25009, 125045, 325117, 1625585]

約数ペア:

[(1, 1625585), (5, 325117), (13, 125045), (65, 25009), (89, 18265), (281, 5785), (445, 3653), (1157, 1405)]