8640680

素因数分解:

$2^3\times 5^1\times {\mathrm{337}}^1\times {\mathrm{641}}^1$

素因数の和:989

約数の個数: 32

約数和(自身を含む): 19529640

約数和(自身を除く): 10888960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 337, 641, 674, 1282, 1348, 1685, 2564, 2696, 3205, 3370, 5128, 6410, 6740, 12820, 13480, 25640, 216017, 432034, 864068, 1080085, 1728136, 2160170, 4320340, 8640680]

約数ペア:

[(1, 8640680), (2, 4320340), (4, 2160170), (5, 1728136), (8, 1080085), (10, 864068), (20, 432034), (40, 216017), (337, 25640), (641, 13480), (674, 12820), (1282, 6740), (1348, 6410), (1685, 5128), (2564, 3370), (2696, 3205)]