28402045

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{26177}}^1$

素因数の和:26220

約数の個数: 16

約数和(自身を含む): 40209408

約数和(自身を除く): 11807363

約数列:

[1, 5, 7, 31, 35, 155, 217, 1085, 26177, 130885, 183239, 811487, 916195, 4057435, 5680409, 28402045]

約数ペア:

[(1, 28402045), (5, 5680409), (7, 4057435), (31, 916195), (35, 811487), (155, 183239), (217, 130885), (1085, 26177)]