20015275

素因数分解:

$5^2\times 7^2\times {\mathrm{16339}}^1$

素因数の和:16363

約数の個数: 18

約数和(自身を含む): 28872780

約数和(自身を除く): 8857505

約数列:

[1, 5, 7, 25, 35, 49, 175, 245, 1225, 16339, 81695, 114373, 408475, 571865, 800611, 2859325, 4003055, 20015275]

約数ペア:

[(1, 20015275), (5, 4003055), (7, 2859325), (25, 800611), (35, 571865), (49, 408475), (175, 114373), (245, 81695), (1225, 16339)]