20983025

素因数分解:

$5^2\times 7^3\times {\mathrm{2447}}^1$

素因数の和:2478

約数の個数: 24

約数和(自身を含む): 30355200

約数和(自身を除く): 9372175

約数列:

[1, 5, 7, 25, 35, 49, 175, 245, 343, 1225, 1715, 2447, 8575, 12235, 17129, 61175, 85645, 119903, 428225, 599515, 839321, 2997575, 4196605, 20983025]

約数ペア:

[(1, 20983025), (5, 4196605), (7, 2997575), (25, 839321), (35, 599515), (49, 428225), (175, 119903), (245, 85645), (343, 61175), (1225, 17129), (1715, 12235), (2447, 8575)]