42081280

素因数分解:

$2^{10}\times 5^1\times {\mathrm{8219}}^1$

素因数の和:8244

約数の個数: 44

約数和(自身を含む): 100958040

約数和(自身を除く): 58876760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 2560, 5120, 8219, 16438, 32876, 41095, 65752, 82190, 131504, 164380, 263008, 328760, 526016, 657520, 1052032, 1315040, 2104064, 2630080, 4208128, 5260160, 8416256, 10520320, 21040640, 42081280]

約数ペア:

[(1, 42081280), (2, 21040640), (4, 10520320), (5, 8416256), (8, 5260160), (10, 4208128), (16, 2630080), (20, 2104064), (32, 1315040), (40, 1052032), (64, 657520), (80, 526016), (128, 328760), (160, 263008), (256, 164380), (320, 131504), (512, 82190), (640, 65752), (1024, 41095), (1280, 32876), (2560, 16438), (5120, 8219)]