28037275

素因数分解:

$5^2\times 7^1\times {\mathrm{131}}^1\times {\mathrm{1223}}^1$

素因数の和:1371

約数の個数: 24

約数和(自身を含む): 40068864

約数和(自身を除く): 12031589

約数列:

[1, 5, 7, 25, 35, 131, 175, 655, 917, 1223, 3275, 4585, 6115, 8561, 22925, 30575, 42805, 160213, 214025, 801065, 1121491, 4005325, 5607455, 28037275]

約数ペア:

[(1, 28037275), (5, 5607455), (7, 4005325), (25, 1121491), (35, 801065), (131, 214025), (175, 160213), (655, 42805), (917, 30575), (1223, 22925), (3275, 8561), (4585, 6115)]