161720236795

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{31493717}}^1$

素因数の和:31493814

約数の個数: 16

約数和(自身を含む): 211637784960

約数和(自身を除く): 49917548165

約数列:

[1, 5, 13, 65, 79, 395, 1027, 5135, 31493717, 157468585, 409418321, 2047091605, 2488003643, 12440018215, 32344047359, 161720236795]

約数ペア:

[(1, 161720236795), (5, 32344047359), (13, 12440018215), (65, 2488003643), (79, 2047091605), (395, 409418321), (1027, 157468585), (5135, 31493717)]