51891190

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{399163}}^1$

素因数の和:399183

約数の個数: 16

約数和(自身を含む): 100589328

約数和(自身を除く): 48698138

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 399163, 798326, 1995815, 3991630, 5189119, 10378238, 25945595, 51891190]

約数ペア:

[(1, 51891190), (2, 25945595), (5, 10378238), (10, 5189119), (13, 3991630), (26, 1995815), (65, 798326), (130, 399163)]