40666240

素因数分解:

$2^7\times 5^1\times {\mathrm{63541}}^1$

素因数の和:63560

約数の個数: 32

約数和(自身を含む): 97219260

約数和(自身を除く): 56553020

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 63541, 127082, 254164, 317705, 508328, 635410, 1016656, 1270820, 2033312, 2541640, 4066624, 5083280, 8133248, 10166560, 20333120, 40666240]

約数ペア:

[(1, 40666240), (2, 20333120), (4, 10166560), (5, 8133248), (8, 5083280), (10, 4066624), (16, 2541640), (20, 2033312), (32, 1270820), (40, 1016656), (64, 635410), (80, 508328), (128, 317705), (160, 254164), (320, 127082), (640, 63541)]