28251875

素因数分解:

$5^4\times {\mathrm{17}}^1\times {\mathrm{2659}}^1$

素因数の和:2696

約数の個数: 20

約数和(自身を含む): 37394280

約数和(自身を除く): 9142405

約数列:

[1, 5, 17, 25, 85, 125, 425, 625, 2125, 2659, 10625, 13295, 45203, 66475, 226015, 332375, 1130075, 1661875, 5650375, 28251875]

約数ペア:

[(1, 28251875), (5, 5650375), (17, 1661875), (25, 1130075), (85, 332375), (125, 226015), (425, 66475), (625, 45203), (2125, 13295), (2659, 10625)]