12690740

素因数分解:

$2^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{3221}}^1$

素因数の和:3427

約数の個数: 24

約数和(自身を含む): 26794152

約数和(自身を除く): 14103412

約数列:

[1, 2, 4, 5, 10, 20, 197, 394, 788, 985, 1970, 3221, 3940, 6442, 12884, 16105, 32210, 64420, 634537, 1269074, 2538148, 3172685, 6345370, 12690740]

約数ペア:

[(1, 12690740), (2, 6345370), (4, 3172685), (5, 2538148), (10, 1269074), (20, 634537), (197, 64420), (394, 32210), (788, 16105), (985, 12884), (1970, 6442), (3221, 3940)]