20275115

素因数分解:

$5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{199}}^1$

素因数の和:323

約数の個数: 32

約数和(自身を含む): 29030400

約数和(自身を除く): 8755285

約数列:

[1, 5, 7, 35, 41, 71, 199, 205, 287, 355, 497, 995, 1393, 1435, 2485, 2911, 6965, 8159, 14129, 14555, 20377, 40795, 57113, 70645, 98903, 101885, 285565, 494515, 579289, 2896445, 4055023, 20275115]

約数ペア:

[(1, 20275115), (5, 4055023), (7, 2896445), (35, 579289), (41, 494515), (71, 285565), (199, 101885), (205, 98903), (287, 70645), (355, 57113), (497, 40795), (995, 20377), (1393, 14555), (1435, 14129), (2485, 8159), (2911, 6965)]