207654560

素因数分解:

$2^5\times 5^1\times {\mathrm{1297841}}^1$

素因数の和:1297856

約数の個数: 24

約数和(自身を含む): 490584276

約数和(自身を除く): 282929716

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 1297841, 2595682, 5191364, 6489205, 10382728, 12978410, 20765456, 25956820, 41530912, 51913640, 103827280, 207654560]

約数ペア:

[(1, 207654560), (2, 103827280), (4, 51913640), (5, 41530912), (8, 25956820), (10, 20765456), (16, 12978410), (20, 10382728), (32, 6489205), (40, 5191364), (80, 2595682), (160, 1297841)]