28761875

素因数分解:

$5^4\times {\mathrm{17}}^1\times {\mathrm{2707}}^1$

素因数の和:2744

約数の個数: 20

約数和(自身を含む): 38069064

約数和(自身を除く): 9307189

約数列:

[1, 5, 17, 25, 85, 125, 425, 625, 2125, 2707, 10625, 13535, 46019, 67675, 230095, 338375, 1150475, 1691875, 5752375, 28761875]

約数ペア:

[(1, 28761875), (5, 5752375), (17, 1691875), (25, 1150475), (85, 338375), (125, 230095), (425, 67675), (625, 46019), (2125, 13535), (2707, 10625)]