20341240

素因数分解:

$2^3\times 5^1\times {\mathrm{508531}}^1$

素因数の和:508542

約数の個数: 16

約数和(自身を含む): 45767880

約数和(自身を除く): 25426640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 508531, 1017062, 2034124, 2542655, 4068248, 5085310, 10170620, 20341240]

約数ペア:

[(1, 20341240), (2, 10170620), (4, 5085310), (5, 4068248), (8, 2542655), (10, 2034124), (20, 1017062), (40, 508531)]