20315116

素因数分解:

$2^2\times {\mathrm{59}}^2\times {\mathrm{1459}}^1$

素因数の和:1581

約数の個数: 18

約数和(自身を含む): 36189020

約数和(自身を除く): 15873904

約数列:

[1, 2, 4, 59, 118, 236, 1459, 2918, 3481, 5836, 6962, 13924, 86081, 172162, 344324, 5078779, 10157558, 20315116]

約数ペア:

[(1, 20315116), (2, 10157558), (4, 5078779), (59, 344324), (118, 172162), (236, 86081), (1459, 13924), (2918, 6962), (3481, 5836)]