12870065

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{389}}^1\times {\mathrm{509}}^1$

素因数の和:916

約数の個数: 16

約数和(自身を含む): 16707600

約数和(自身を除く): 3837535

約数列:

[1, 5, 13, 65, 389, 509, 1945, 2545, 5057, 6617, 25285, 33085, 198001, 990005, 2574013, 12870065]

約数ペア:

[(1, 12870065), (5, 2574013), (13, 990005), (65, 198001), (389, 33085), (509, 25285), (1945, 6617), (2545, 5057)]