17813480

素因数分解:

$2^3\times 5^1\times {\mathrm{491}}^1\times {\mathrm{907}}^1$

素因数の和:1409

約数の個数: 32

約数和(自身を含む): 40206240

約数和(自身を除く): 22392760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 491, 907, 982, 1814, 1964, 2455, 3628, 3928, 4535, 4910, 7256, 9070, 9820, 18140, 19640, 36280, 445337, 890674, 1781348, 2226685, 3562696, 4453370, 8906740, 17813480]

約数ペア:

[(1, 17813480), (2, 8906740), (4, 4453370), (5, 3562696), (8, 2226685), (10, 1781348), (20, 890674), (40, 445337), (491, 36280), (907, 19640), (982, 18140), (1814, 9820), (1964, 9070), (2455, 7256), (3628, 4910), (3928, 4535)]