9946240

素因数分解:

$2^7\times 5^1\times {\mathrm{15541}}^1$

素因数の和:15560

約数の個数: 32

約数和(自身を含む): 23779260

約数和(自身を除く): 13833020

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 15541, 31082, 62164, 77705, 124328, 155410, 248656, 310820, 497312, 621640, 994624, 1243280, 1989248, 2486560, 4973120, 9946240]

約数ペア:

[(1, 9946240), (2, 4973120), (4, 2486560), (5, 1989248), (8, 1243280), (10, 994624), (16, 621640), (20, 497312), (32, 310820), (40, 248656), (64, 155410), (80, 124328), (128, 77705), (160, 62164), (320, 31082), (640, 15541)]