28388625

素因数分解:

$3^1\times 5^3\times {\mathrm{75703}}^1$

素因数の和:75721

約数の個数: 16

約数和(自身を含む): 47239296

約数和(自身を除く): 18850671

約数列:

[1, 3, 5, 15, 25, 75, 125, 375, 75703, 227109, 378515, 1135545, 1892575, 5677725, 9462875, 28388625]

約数ペア:

[(1, 28388625), (3, 9462875), (5, 5677725), (15, 1892575), (25, 1135545), (75, 378515), (125, 227109), (375, 75703)]