28409675

素因数分解:

$5^2\times 7^1\times {\mathrm{67}}^1\times {\mathrm{2423}}^1$

素因数の和:2507

約数の個数: 24

約数和(自身を含む): 40878336

約数和(自身を除く): 12468661

約数列:

[1, 5, 7, 25, 35, 67, 175, 335, 469, 1675, 2345, 2423, 11725, 12115, 16961, 60575, 84805, 162341, 424025, 811705, 1136387, 4058525, 5681935, 28409675]

約数ペア:

[(1, 28409675), (5, 5681935), (7, 4058525), (25, 1136387), (35, 811705), (67, 424025), (175, 162341), (335, 84805), (469, 60575), (1675, 16961), (2345, 12115), (2423, 11725)]