80243620

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{36809}}^1$

素因数の和:36927

約数の個数: 24

約数和(自身を含む): 170062200

約数和(自身を除く): 89818580

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 36809, 73618, 147236, 184045, 368090, 736180, 4012181, 8024362, 16048724, 20060905, 40121810, 80243620]

約数ペア:

[(1, 80243620), (2, 40121810), (4, 20060905), (5, 16048724), (10, 8024362), (20, 4012181), (109, 736180), (218, 368090), (436, 184045), (545, 147236), (1090, 73618), (2180, 36809)]