720256641

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{2647}}^1\times {\mathrm{6977}}^1$

素因数の和:9640

約数の個数: 16

約数和(自身を含む): 1034753664

約数和(自身を除く): 314497023

約数列:

[1, 3, 13, 39, 2647, 6977, 7941, 20931, 34411, 90701, 103233, 272103, 18468119, 55404357, 240085547, 720256641]

約数ペア:

[(1, 720256641), (3, 240085547), (13, 55404357), (39, 18468119), (2647, 272103), (6977, 103233), (7941, 90701), (20931, 34411)]