720752

素因数分解:

$2^4\times {\mathrm{107}}^1\times {\mathrm{421}}^1$

素因数の和:536

約数の個数: 20

約数和(自身を含む): 1412856

約数和(自身を除く): 692104

約数列:

[1, 2, 4, 8, 16, 107, 214, 421, 428, 842, 856, 1684, 1712, 3368, 6736, 45047, 90094, 180188, 360376, 720752]

約数ペア:

[(1, 720752), (2, 360376), (4, 180188), (8, 90094), (16, 45047), (107, 6736), (214, 3368), (421, 1712), (428, 1684), (842, 856)]