423040

素因数分解:

$2^7\times 5^1\times {\mathrm{661}}^1$

素因数の和:680

約数の個数: 32

約数和(自身を含む): 1012860

約数和(自身を除く): 589820

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 661, 1322, 2644, 3305, 5288, 6610, 10576, 13220, 21152, 26440, 42304, 52880, 84608, 105760, 211520, 423040]

約数ペア:

[(1, 423040), (2, 211520), (4, 105760), (5, 84608), (8, 52880), (10, 42304), (16, 26440), (20, 21152), (32, 13220), (40, 10576), (64, 6610), (80, 5288), (128, 3305), (160, 2644), (320, 1322), (640, 661)]