207864640

素因数分解:

$2^6\times 5^1\times {\mathrm{649577}}^1$

素因数の和:649594

約数の個数: 28

約数和(自身を含む): 494978436

約数和(自身を除く): 287113796

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 649577, 1299154, 2598308, 3247885, 5196616, 6495770, 10393232, 12991540, 20786464, 25983080, 41572928, 51966160, 103932320, 207864640]

約数ペア:

[(1, 207864640), (2, 103932320), (4, 51966160), (5, 41572928), (8, 25983080), (10, 20786464), (16, 12991540), (20, 10393232), (32, 6495770), (40, 5196616), (64, 3247885), (80, 2598308), (160, 1299154), (320, 649577)]