20165075

素因数分解:

$5^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{1889}}^1$

素因数の和:1967

約数の個数: 24

約数和(自身を含む): 29060640

約数和(自身を除く): 8895565

約数列:

[1, 5, 7, 25, 35, 61, 175, 305, 427, 1525, 1889, 2135, 9445, 10675, 13223, 47225, 66115, 115229, 330575, 576145, 806603, 2880725, 4033015, 20165075]

約数ペア:

[(1, 20165075), (5, 4033015), (7, 2880725), (25, 806603), (35, 576145), (61, 330575), (175, 115229), (305, 66115), (427, 47225), (1525, 13223), (1889, 10675), (2135, 9445)]