12389240

素因数分解:

$2^3\times 5^1\times {\mathrm{309731}}^1$

素因数の和:309742

約数の個数: 16

約数和(自身を含む): 27875880

約数和(自身を除く): 15486640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 309731, 619462, 1238924, 1548655, 2477848, 3097310, 6194620, 12389240]

約数ペア:

[(1, 12389240), (2, 6194620), (4, 3097310), (5, 2477848), (8, 1548655), (10, 1238924), (20, 619462), (40, 309731)]