18000775

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{571}}^1$

素因数の和:691

約数の個数: 24

約数和(自身を含む): 24328304

約数和(自身を除く): 6327529

約数列:

[1, 5, 13, 25, 65, 97, 325, 485, 571, 1261, 2425, 2855, 6305, 7423, 14275, 31525, 37115, 55387, 185575, 276935, 720031, 1384675, 3600155, 18000775]

約数ペア:

[(1, 18000775), (5, 3600155), (13, 1384675), (25, 720031), (65, 276935), (97, 185575), (325, 55387), (485, 37115), (571, 31525), (1261, 14275), (2425, 7423), (2855, 6305)]