12420275

素因数分解:

$5^2\times 7^2\times {\mathrm{10139}}^1$

素因数の和:10163

約数の個数: 18

約数和(自身を含む): 17917380

約数和(自身を除く): 5497105

約数列:

[1, 5, 7, 25, 35, 49, 175, 245, 1225, 10139, 50695, 70973, 253475, 354865, 496811, 1774325, 2484055, 12420275]

約数ペア:

[(1, 12420275), (5, 2484055), (7, 1774325), (25, 496811), (35, 354865), (49, 253475), (175, 70973), (245, 50695), (1225, 10139)]