28159225

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{1123}}^1$

素因数の和:1209

約数の個数: 24

約数和(自身を含む): 37631520

約数和(自身を除く): 9472295

約数列:

[1, 5, 17, 25, 59, 85, 295, 425, 1003, 1123, 1475, 5015, 5615, 19091, 25075, 28075, 66257, 95455, 331285, 477275, 1126369, 1656425, 5631845, 28159225]

約数ペア:

[(1, 28159225), (5, 5631845), (17, 1656425), (25, 1126369), (59, 477275), (85, 331285), (295, 95455), (425, 66257), (1003, 28075), (1123, 25075), (1475, 19091), (5015, 5615)]