12388940

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{5683}}^1$

素因数の和:5801

約数の個数: 24

約数和(自身を含む): 26260080

約数和(自身を除く): 13871140

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 5683, 11366, 22732, 28415, 56830, 113660, 619447, 1238894, 2477788, 3097235, 6194470, 12388940]

約数ペア:

[(1, 12388940), (2, 6194470), (4, 3097235), (5, 2477788), (10, 1238894), (20, 619447), (109, 113660), (218, 56830), (436, 28415), (545, 22732), (1090, 11366), (2180, 5683)]