20481685

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{1187}}^1$

素因数の和:1245

約数の個数: 32

約数和(自身を含む): 30792960

約数和(自身を除く): 10311275

約数列:

[1, 5, 7, 17, 29, 35, 85, 119, 145, 203, 493, 595, 1015, 1187, 2465, 3451, 5935, 8309, 17255, 20179, 34423, 41545, 100895, 141253, 172115, 240961, 585191, 706265, 1204805, 2925955, 4096337, 20481685]

約数ペア:

[(1, 20481685), (5, 4096337), (7, 2925955), (17, 1204805), (29, 706265), (35, 585191), (85, 240961), (119, 172115), (145, 141253), (203, 100895), (493, 41545), (595, 34423), (1015, 20179), (1187, 17255), (2465, 8309), (3451, 5935)]