20886425

素因数分解:

$5^2\times 7^1\times {\mathrm{41}}^2\times {\mathrm{71}}^1$

素因数の和:170

約数の個数: 36

約数和(自身を含む): 30765888

約数和(自身を除く): 9879463

約数列:

[1, 5, 7, 25, 35, 41, 71, 175, 205, 287, 355, 497, 1025, 1435, 1681, 1775, 2485, 2911, 7175, 8405, 11767, 12425, 14555, 20377, 42025, 58835, 72775, 101885, 119351, 294175, 509425, 596755, 835457, 2983775, 4177285, 20886425]

約数ペア:

[(1, 20886425), (5, 4177285), (7, 2983775), (25, 835457), (35, 596755), (41, 509425), (71, 294175), (175, 119351), (205, 101885), (287, 72775), (355, 58835), (497, 42025), (1025, 20377), (1435, 14555), (1681, 12425), (1775, 11767), (2485, 8405), (2911, 7175)]