28820675

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{1249}}^1$

素因数の和:1343

約数の個数: 24

約数和(自身を含む): 39060000

約数和(自身を除く): 10239325

約数列:

[1, 5, 13, 25, 65, 71, 325, 355, 923, 1249, 1775, 4615, 6245, 16237, 23075, 31225, 81185, 88679, 405925, 443395, 1152827, 2216975, 5764135, 28820675]

約数ペア:

[(1, 28820675), (5, 5764135), (13, 2216975), (25, 1152827), (65, 443395), (71, 405925), (325, 88679), (355, 81185), (923, 31225), (1249, 23075), (1775, 16237), (4615, 6245)]