80698520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{288209}}^1$

素因数の和:288227

約数の個数: 32

約数和(自身を含む): 207511200

約数和(自身を除く): 126812680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 288209, 576418, 1152836, 1441045, 2017463, 2305672, 2882090, 4034926, 5764180, 8069852, 10087315, 11528360, 16139704, 20174630, 40349260, 80698520]

約数ペア:

[(1, 80698520), (2, 40349260), (4, 20174630), (5, 16139704), (7, 11528360), (8, 10087315), (10, 8069852), (14, 5764180), (20, 4034926), (28, 2882090), (35, 2305672), (40, 2017463), (56, 1441045), (70, 1152836), (140, 576418), (280, 288209)]