12389975

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{569}}^1$

素因数の和:659

約数の個数: 24

約数和(自身を含む): 16821840

約数和(自身を除く): 4431865

約数列:

[1, 5, 13, 25, 65, 67, 325, 335, 569, 871, 1675, 2845, 4355, 7397, 14225, 21775, 36985, 38123, 184925, 190615, 495599, 953075, 2477995, 12389975]

約数ペア:

[(1, 12389975), (5, 2477995), (13, 953075), (25, 495599), (65, 190615), (67, 184925), (325, 38123), (335, 36985), (569, 21775), (871, 14225), (1675, 7397), (2845, 4355)]