1998420385

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{580093}}^1$

素因数の和:580164

約数の個数: 16

約数和(自身を含む): 2631306384

約数和(自身を除く): 632885999

約数列:

[1, 5, 13, 53, 65, 265, 689, 3445, 580093, 2900465, 7541209, 30744929, 37706045, 153724645, 399684077, 1998420385]

約数ペア:

[(1, 1998420385), (5, 399684077), (13, 153724645), (53, 37706045), (65, 30744929), (265, 7541209), (689, 2900465), (3445, 580093)]