12775040

素因数分解:

$2^7\times 5^1\times {\mathrm{19961}}^1$

素因数の和:19980

約数の個数: 32

約数和(自身を含む): 30541860

約数和(自身を除く): 17766820

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 19961, 39922, 79844, 99805, 159688, 199610, 319376, 399220, 638752, 798440, 1277504, 1596880, 2555008, 3193760, 6387520, 12775040]

約数ペア:

[(1, 12775040), (2, 6387520), (4, 3193760), (5, 2555008), (8, 1596880), (10, 1277504), (16, 798440), (20, 638752), (32, 399220), (40, 319376), (64, 199610), (80, 159688), (128, 99805), (160, 79844), (320, 39922), (640, 19961)]