1643256485

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{320011}}^1$

素因数の和:320108

約数の個数: 16

約数和(自身を含む): 2150480640

約数和(自身を除く): 507224155

約数列:

[1, 5, 13, 65, 79, 395, 1027, 5135, 320011, 1600055, 4160143, 20800715, 25280869, 126404345, 328651297, 1643256485]

約数ペア:

[(1, 1643256485), (5, 328651297), (13, 126404345), (65, 25280869), (79, 20800715), (395, 4160143), (1027, 1600055), (5135, 320011)]