20165194

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^2$

素因数の和:155

約数の個数: 48

約数和(自身を含む): 38162880

約数和(自身を除く): 17997686

約数列:

[1, 2, 7, 14, 19, 38, 41, 43, 82, 86, 133, 266, 287, 301, 574, 602, 779, 817, 1558, 1634, 1763, 1849, 3526, 3698, 5453, 5719, 10906, 11438, 12341, 12943, 24682, 25886, 33497, 35131, 66994, 70262, 75809, 151618, 234479, 245917, 468958, 491834, 530663, 1061326, 1440371, 2880742, 10082597, 20165194]

約数ペア:

[(1, 20165194), (2, 10082597), (7, 2880742), (14, 1440371), (19, 1061326), (38, 530663), (41, 491834), (43, 468958), (82, 245917), (86, 234479), (133, 151618), (266, 75809), (287, 70262), (301, 66994), (574, 35131), (602, 33497), (779, 25886), (817, 24682), (1558, 12943), (1634, 12341), (1763, 11438), (1849, 10906), (3526, 5719), (3698, 5453)]