20039984

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{65921}}^1$

素因数の和:65948

約数の個数: 20

約数和(自身を含む): 40871640

約数和(自身を除く): 20831656

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 65921, 131842, 263684, 527368, 1054736, 1252499, 2504998, 5009996, 10019992, 20039984]

約数ペア:

[(1, 20039984), (2, 10019992), (4, 5009996), (8, 2504998), (16, 1252499), (19, 1054736), (38, 527368), (76, 263684), (152, 131842), (304, 65921)]