71320420

素因数分解:

$2^2\times 5^1\times {\mathrm{1061}}^1\times {\mathrm{3361}}^1$

素因数の和:4431

約数の個数: 24

約数和(自身を含む): 149958648

約数和(自身を除く): 78638228

約数列:

[1, 2, 4, 5, 10, 20, 1061, 2122, 3361, 4244, 5305, 6722, 10610, 13444, 16805, 21220, 33610, 67220, 3566021, 7132042, 14264084, 17830105, 35660210, 71320420]

約数ペア:

[(1, 71320420), (2, 35660210), (4, 17830105), (5, 14264084), (10, 7132042), (20, 3566021), (1061, 67220), (2122, 33610), (3361, 21220), (4244, 16805), (5305, 13444), (6722, 10610)]