399888970

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{83137}}^1$

素因数の和:83194

約数の個数: 32

約数和(自身を含む): 796129488

約数和(自身を除く): 396240518

約数列:

[1, 2, 5, 10, 13, 26, 37, 65, 74, 130, 185, 370, 481, 962, 2405, 4810, 83137, 166274, 415685, 831370, 1080781, 2161562, 3076069, 5403905, 6152138, 10807810, 15380345, 30760690, 39988897, 79977794, 199944485, 399888970]

約数ペア:

[(1, 399888970), (2, 199944485), (5, 79977794), (10, 39988897), (13, 30760690), (26, 15380345), (37, 10807810), (65, 6152138), (74, 5403905), (130, 3076069), (185, 2161562), (370, 1080781), (481, 831370), (962, 415685), (2405, 166274), (4810, 83137)]