20161824464

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{401}}^1\times {\mathrm{165391}}^1$

素因数の和:165819

約数の個数: 40

約数和(自身を含む): 41222302080

約数和(自身を除く): 21060477616

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 401, 802, 1604, 3208, 6416, 7619, 15238, 30476, 60952, 121904, 165391, 330782, 661564, 1323128, 2646256, 3142429, 6284858, 12569716, 25139432, 50278864, 66321791, 132643582, 265287164, 530574328, 1061148656, 1260114029, 2520228058, 5040456116, 10080912232, 20161824464]

約数ペア:

[(1, 20161824464), (2, 10080912232), (4, 5040456116), (8, 2520228058), (16, 1260114029), (19, 1061148656), (38, 530574328), (76, 265287164), (152, 132643582), (304, 66321791), (401, 50278864), (802, 25139432), (1604, 12569716), (3208, 6284858), (6416, 3142429), (7619, 2646256), (15238, 1323128), (30476, 661564), (60952, 330782), (121904, 165391)]