9191920

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{1291}}^1$

素因数の和:1393

約数の個数: 40

約数和(自身を含む): 21628080

約数和(自身を除く): 12436160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 356, 445, 712, 890, 1291, 1424, 1780, 2582, 3560, 5164, 6455, 7120, 10328, 12910, 20656, 25820, 51640, 103280, 114899, 229798, 459596, 574495, 919192, 1148990, 1838384, 2297980, 4595960, 9191920]

約数ペア:

[(1, 9191920), (2, 4595960), (4, 2297980), (5, 1838384), (8, 1148990), (10, 919192), (16, 574495), (20, 459596), (40, 229798), (80, 114899), (89, 103280), (178, 51640), (356, 25820), (445, 20656), (712, 12910), (890, 10328), (1291, 7120), (1424, 6455), (1780, 5164), (2582, 3560)]