215682025

素因数分解:

$5^2\times {\mathrm{13}}^2\times {\mathrm{71}}^1\times {\mathrm{719}}^1$

素因数の和:826

約数の個数: 36

約数和(自身を含む): 294088320

約数和(自身を除く): 78406295

約数列:

[1, 5, 13, 25, 65, 71, 169, 325, 355, 719, 845, 923, 1775, 3595, 4225, 4615, 9347, 11999, 17975, 23075, 46735, 51049, 59995, 121511, 233675, 255245, 299975, 607555, 663637, 1276225, 3037775, 3318185, 8627281, 16590925, 43136405, 215682025]

約数ペア:

[(1, 215682025), (5, 43136405), (13, 16590925), (25, 8627281), (65, 3318185), (71, 3037775), (169, 1276225), (325, 663637), (355, 607555), (719, 299975), (845, 255245), (923, 233675), (1775, 121511), (3595, 59995), (4225, 51049), (4615, 46735), (9347, 23075), (11999, 17975)]