28648025

素因数分解:

$5^2\times 7^1\times {\mathrm{127}}^1\times {\mathrm{1289}}^1$

素因数の和:1433

約数の個数: 24

約数和(自身を含む): 40949760

約数和(自身を除く): 12301735

約数列:

[1, 5, 7, 25, 35, 127, 175, 635, 889, 1289, 3175, 4445, 6445, 9023, 22225, 32225, 45115, 163703, 225575, 818515, 1145921, 4092575, 5729605, 28648025]

約数ペア:

[(1, 28648025), (5, 5729605), (7, 4092575), (25, 1145921), (35, 818515), (127, 225575), (175, 163703), (635, 45115), (889, 32225), (1289, 22225), (3175, 9023), (4445, 6445)]