20128262

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{4507}}^1$

素因数の和:4556

約数の個数: 32

約数和(自身を含む): 38949120

約数和(自身を除く): 18820858

約数列:

[1, 2, 7, 11, 14, 22, 29, 58, 77, 154, 203, 319, 406, 638, 2233, 4466, 4507, 9014, 31549, 49577, 63098, 99154, 130703, 261406, 347039, 694078, 914921, 1437733, 1829842, 2875466, 10064131, 20128262]

約数ペア:

[(1, 20128262), (2, 10064131), (7, 2875466), (11, 1829842), (14, 1437733), (22, 914921), (29, 694078), (58, 347039), (77, 261406), (154, 130703), (203, 99154), (319, 63098), (406, 49577), (638, 31549), (2233, 9014), (4466, 4507)]