389321931505

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{1979}}^1\times {\mathrm{81799}}^1$

素因数の和:83833

約数の個数: 32

約数和(自身を含む): 516989088000

約数和(自身を除く): 127667156495

約数列:

[1, 5, 13, 37, 65, 185, 481, 1979, 2405, 9895, 25727, 73223, 81799, 128635, 366115, 408995, 951899, 1063387, 3026563, 4759495, 5316935, 15132815, 39345319, 161880221, 196726595, 809401105, 2104442873, 5989568177, 10522214365, 29947840885, 77864386301, 389321931505]

約数ペア:

[(1, 389321931505), (5, 77864386301), (13, 29947840885), (37, 10522214365), (65, 5989568177), (185, 2104442873), (481, 809401105), (1979, 196726595), (2405, 161880221), (9895, 39345319), (25727, 15132815), (73223, 5316935), (81799, 4759495), (128635, 3026563), (366115, 1063387), (408995, 951899)]