2805725

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{97}}^1$

素因数の和:209

約数の個数: 24

約数和(自身を含む): 3827880

約数和(自身を除く): 1022155

約数列:

[1, 5, 13, 25, 65, 89, 97, 325, 445, 485, 1157, 1261, 2225, 2425, 5785, 6305, 8633, 28925, 31525, 43165, 112229, 215825, 561145, 2805725]

約数ペア:

[(1, 2805725), (5, 561145), (13, 215825), (25, 112229), (65, 43165), (89, 31525), (97, 28925), (325, 8633), (445, 6305), (485, 5785), (1157, 2425), (1261, 2225)]