80733520

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{144167}}^1$

素因数の和:144187

約数の個数: 40

約数和(自身を含む): 214521984

約数和(自身を除く): 133788464

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 144167, 288334, 576668, 720835, 1009169, 1153336, 1441670, 2018338, 2306672, 2883340, 4036676, 5045845, 5766680, 8073352, 10091690, 11533360, 16146704, 20183380, 40366760, 80733520]

約数ペア:

[(1, 80733520), (2, 40366760), (4, 20183380), (5, 16146704), (7, 11533360), (8, 10091690), (10, 8073352), (14, 5766680), (16, 5045845), (20, 4036676), (28, 2883340), (35, 2306672), (40, 2018338), (56, 1441670), (70, 1153336), (80, 1009169), (112, 720835), (140, 576668), (280, 288334), (560, 144167)]