1990696975

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{38449}}^1$

素因数の和:38587

約数の個数: 24

約数和(自身を含む): 2622290000

約数和(自身を除く): 631593025

約数列:

[1, 5, 19, 25, 95, 109, 475, 545, 2071, 2725, 10355, 38449, 51775, 192245, 730531, 961225, 3652655, 4190941, 18263275, 20954705, 79627879, 104773525, 398139395, 1990696975]

約数ペア:

[(1, 1990696975), (5, 398139395), (19, 104773525), (25, 79627879), (95, 20954705), (109, 18263275), (475, 4190941), (545, 3652655), (2071, 961225), (2725, 730531), (10355, 192245), (38449, 51775)]