20498560

素因数分解:

$2^7\times 5^1\times {\mathrm{32029}}^1$

素因数の和:32048

約数の個数: 32

約数和(自身を含む): 49005900

約数和(自身を除く): 28507340

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 32029, 64058, 128116, 160145, 256232, 320290, 512464, 640580, 1024928, 1281160, 2049856, 2562320, 4099712, 5124640, 10249280, 20498560]

約数ペア:

[(1, 20498560), (2, 10249280), (4, 5124640), (5, 4099712), (8, 2562320), (10, 2049856), (16, 1281160), (20, 1024928), (32, 640580), (40, 512464), (64, 320290), (80, 256232), (128, 160145), (160, 128116), (320, 64058), (640, 32029)]