208879040

素因数分解:

$2^6\times 5^1\times {\mathrm{652747}}^1$

素因数の和:652764

約数の個数: 28

約数和(自身を含む): 497393976

約数和(自身を除く): 288514936

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 652747, 1305494, 2610988, 3263735, 5221976, 6527470, 10443952, 13054940, 20887904, 26109880, 41775808, 52219760, 104439520, 208879040]

約数ペア:

[(1, 208879040), (2, 104439520), (4, 52219760), (5, 41775808), (8, 26109880), (10, 20887904), (16, 13054940), (20, 10443952), (32, 6527470), (40, 5221976), (64, 3263735), (80, 2610988), (160, 1305494), (320, 652747)]