2145213005

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{417763}}^1$

素因数の和:417860

約数の個数: 16

約数和(自身を含む): 2807374080

約数和(自身を除く): 662161075

約数列:

[1, 5, 13, 65, 79, 395, 1027, 5135, 417763, 2088815, 5430919, 27154595, 33003277, 165016385, 429042601, 2145213005]

約数ペア:

[(1, 2145213005), (5, 429042601), (13, 165016385), (65, 33003277), (79, 27154595), (395, 5430919), (1027, 2088815), (5135, 417763)]