20333120

素因数分解:

$2^6\times 5^1\times {\mathrm{63541}}^1$

素因数の和:63558

約数の個数: 28

約数和(自身を含む): 48419004

約数和(自身を除く): 28085884

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 63541, 127082, 254164, 317705, 508328, 635410, 1016656, 1270820, 2033312, 2541640, 4066624, 5083280, 10166560, 20333120]

約数ペア:

[(1, 20333120), (2, 10166560), (4, 5083280), (5, 4066624), (8, 2541640), (10, 2033312), (16, 1270820), (20, 1016656), (32, 635410), (40, 508328), (64, 317705), (80, 254164), (160, 127082), (320, 63541)]