16720456

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{2683}}^1$

素因数の和:2749

約数の個数: 32

約数和(自身を含む): 33818400

約数和(自身を除く): 17097944

約数列:

[1, 2, 4, 8, 19, 38, 41, 76, 82, 152, 164, 328, 779, 1558, 2683, 3116, 5366, 6232, 10732, 21464, 50977, 101954, 110003, 203908, 220006, 407816, 440012, 880024, 2090057, 4180114, 8360228, 16720456]

約数ペア:

[(1, 16720456), (2, 8360228), (4, 4180114), (8, 2090057), (19, 880024), (38, 440012), (41, 407816), (76, 220006), (82, 203908), (152, 110003), (164, 101954), (328, 50977), (779, 21464), (1558, 10732), (2683, 6232), (3116, 5366)]