678889280

素因数分解:

$2^6\times 5^1\times {\mathrm{2121529}}^1$

素因数の和:2121546

約数の個数: 28

約数和(自身を含む): 1616605860

約数和(自身を除く): 937716580

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 2121529, 4243058, 8486116, 10607645, 16972232, 21215290, 33944464, 42430580, 67888928, 84861160, 135777856, 169722320, 339444640, 678889280]

約数ペア:

[(1, 678889280), (2, 339444640), (4, 169722320), (5, 135777856), (8, 84861160), (10, 67888928), (16, 42430580), (20, 33944464), (32, 21215290), (40, 16972232), (64, 10607645), (80, 8486116), (160, 4243058), (320, 2121529)]