11921920

素因数分解:

$2^9\times 5^1\times {\mathrm{4657}}^1$

素因数の和:4680

約数の個数: 40

約数和(自身を含む): 28590804

約数和(自身を除く): 16668884

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 4657, 9314, 18628, 23285, 37256, 46570, 74512, 93140, 149024, 186280, 298048, 372560, 596096, 745120, 1192192, 1490240, 2384384, 2980480, 5960960, 11921920]

約数ペア:

[(1, 11921920), (2, 5960960), (4, 2980480), (5, 2384384), (8, 1490240), (10, 1192192), (16, 745120), (20, 596096), (32, 372560), (40, 298048), (64, 186280), (80, 149024), (128, 93140), (160, 74512), (256, 46570), (320, 37256), (512, 23285), (640, 18628), (1280, 9314), (2560, 4657)]