131781325

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{5711}}^1$

素因数の和:5805

約数の個数: 24

約数和(自身を含む): 178488576

約数和(自身を除く): 46707251

約数列:

[1, 5, 13, 25, 65, 71, 325, 355, 923, 1775, 4615, 5711, 23075, 28555, 74243, 142775, 371215, 405481, 1856075, 2027405, 5271253, 10137025, 26356265, 131781325]

約数ペア:

[(1, 131781325), (5, 26356265), (13, 10137025), (25, 5271253), (65, 2027405), (71, 1856075), (325, 405481), (355, 371215), (923, 142775), (1775, 74243), (4615, 28555), (5711, 23075)]