216198740

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{263657}}^1$

素因数の和:263707

約数の個数: 24

約数和(自身を含む): 465092712

約数和(自身を除く): 248893972

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 263657, 527314, 1054628, 1318285, 2636570, 5273140, 10809937, 21619874, 43239748, 54049685, 108099370, 216198740]

約数ペア:

[(1, 216198740), (2, 108099370), (4, 54049685), (5, 43239748), (10, 21619874), (20, 10809937), (41, 5273140), (82, 2636570), (164, 1318285), (205, 1054628), (410, 527314), (820, 263657)]