201391255

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^2\times {\mathrm{1103}}^1$

素因数の和:1227

約数の個数: 24

約数和(自身を含む): 265503168

約数和(自身を除く): 64111913

約数列:

[1, 5, 13, 53, 65, 265, 689, 1103, 2809, 3445, 5515, 14045, 14339, 36517, 58459, 71695, 182585, 292295, 759967, 3098327, 3799835, 15491635, 40278251, 201391255]

約数ペア:

[(1, 201391255), (5, 40278251), (13, 15491635), (53, 3799835), (65, 3098327), (265, 759967), (689, 292295), (1103, 182585), (2809, 71695), (3445, 58459), (5515, 36517), (14045, 14339)]