2297980

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{1291}}^1$

素因数の和:1389

約数の個数: 24

約数和(自身を含む): 4883760

約数和(自身を除く): 2585780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1291, 1780, 2582, 5164, 6455, 12910, 25820, 114899, 229798, 459596, 574495, 1148990, 2297980]

約数ペア:

[(1, 2297980), (2, 1148990), (4, 574495), (5, 459596), (10, 229798), (20, 114899), (89, 25820), (178, 12910), (356, 6455), (445, 5164), (890, 2582), (1291, 1780)]